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1910-11 Washington-Franklin issues Perforated 12, Single Line watermark
Scott 374, 1¢, plate number 5484
Scott 374P, proof plate number 5573 (Image courtesy of the National Postal Museum)
Scott 374 var, 1¢ Bureau precancel, plate number 5605
Scott 374 var, 1¢ local mimeo precancel, (374-L-1M-var1), plate number 5605
Scott 374, 1¢ misperfed vertically, plate number 5600
Scott 374 var, 1¢ with partial print of another row, plate number 5596
Scott 374a, 1¢ booklet single, plate number 5454
Scott 375, 2¢ carmine, plate number 5353
Scott 375 var, 2¢ Bureau precancel, plate number 5624
Scott 375a, 2¢ booklet single, plate number 5461
Scott 375aP, proof plate number 5130 (Image courtesy of the National Postal Museum)
Scott 375b, 2¢ lake, plate number 5544
Scott 376, 3¢ violet, plate number 5131
Scott 376P, proof plate number 5424 (Image courtesy of the National Postal Museum)
Scott 376 var, 3¢ Bureau precancel, plate number 6050
Scott 376 var, 3¢ lilac, plate number 5428
Scott 377, 4¢, plate number 6025
Scott 377 var, 4¢ Bureau precancel, plate number 6004
Scott 378, 5¢, plate number 5649
Scott 378 var, 5¢ Bureau precancel, plate number 6352
Scott 378 var, 5¢ double printing of plate number, plate number 5379 / 5376
Scott 378 var, 5¢ rosette cracked plate at UR, plate number 6739
Scott 379, 6¢ orange, plate number 5215
Scott 379 var, 6¢ Bureau precancel, plate number 5215
Scott 379 var, 6¢ light red orange, plate number 5203
Scott 380, 8¢, plate number 5238
Scott 381, 10¢ yellow, plate number 5200
Scott 381 var, 10¢ orange yellow, plate number 5200
Scott 381 var, 10¢ bright yellow, plate number 5200
Scott 381aP, 10¢ brown yellow, proof plate number 5200 (Image courtesy of the National Postal Museum) Scott recognized the new brown yellow shade variety in 2023, assigning catalog number 381a. Based on this proof, brown yellow may have been the original color, with yellow, orange yellow and bright yellow being used later. Supplies of the 13¢ stamp were sufficient, so it was not reprinted during the period when single line watermarked paper was used.
Scott 382, 15¢, plate number 4949
Imperforate, Single Line watermark
Scott 383, 1¢, plate number 5709
Scott 383 var, 1¢, photographically cropped from a larger multiple of a special plate of 160 subjects used to print coils for private perforating companies, plate number 5639
Scott 383V, 1¢ vertical coil, plate number 5322 (Image courtesy of Stuart Katz)
Scott 383 var, 1¢, photographically cropped from a larger multiple with counterfeit Farwell Group 2 private vending machine perforations, plate number 5643
Scott 383 var, 1¢, photographically cropped from a larger multiple with faked Farwell 4B4 private vending machine perforations in the margine, faked Farwell 4A4 perfs at right, plate number 5715
Scott 384, 2¢ carmine, plate number 5296. The printer's initials also appear in the margin, tracking each time the plate was checked out of the vault for print runs, or checked back in.
Scott 384 var, 2¢ double star, plate number 5296
Scott 384 var, 2¢ dark carmine, plate number 5687
Scott 384 var, 2¢ precancel, privately perforated, plate number 5554
Scott 384 var, 2¢, privately perforated, Mailometer Type IV, plate number 5518
Scott 384 var, 2¢, privately perforated, Farwell Type A, plate number 5619
Scott 384, 2¢ privately perforated coil (Farwell Co., Chicago), corner margin pair, showing the siderographer's initials (J.S.S.). This is one of the few plates where they appear at the upper left. (Image courtesy of Doug D'Avino)
Scott 384V, 2¢ paste-up from private coil, plate number 5307
Coil stamps, Single Line watermark
Scott 385, 1¢, plate number 5387 on a paste-up single. Perforated 12. This stamp appeared at the end of a strip, and another strip of coil stamps was originally pasted over the top of the plate number "leader" strip to make up the continuous coil for vending machines.
Fake Scott 385 coil, actually Scott 331a, plate number 5034 Clues:
Scott 386, 2¢, plate number 5508 on a paste-up single. Perforated 12.
Scott 390, 1¢ paste-up pair, plate number 5573. Perforated 8-1/2.
Scott 391, 2¢ paste-up pair, plate number 5560. Perforated 8-1/2.
Scott 392, 1¢ paste-up single, plate number 5657. Perforated 8-1/2. This single stamp appeared at the right end of a strip of coil stamps, and another strip was originally pasted over it to the right,
Scott 393, 3¢ paste-up single, plate number 5560. Perforated 8-1/2.
Scott 394, 3¢ paste-up single, plate number 5433. Perforated 8-1/2.
Scott 395, 4¢ paste-up single, plate number 5575
Scott 396, 5¢ paste-up single, plate number 5894
1912-14 Washington-Franklin issues Redesigned with Washington appearing on 1-6¢ and the new 7¢ denomination, and Franklin on 8¢ through $1. Numerals on 1¢ and 2¢ values replaced "ONE CENT" and "TWO CENTS" to conform with UPU regulations. New values for 7¢, 9¢, 11¢, 12¢, 20¢ and 30¢ introduced. Perforated 12, Single Line watermark
Scott 405, 1¢, plate number 6028
Scott 405 var, 1¢ Bureau precancel, plate number 6028
Scott 405 var, 1¢ misperfed vertically, plate number 7535
Scott 405 var, 1¢ inverted tablet offset in margin, plate number 6532
Scott 405b, 1¢ booklet single, plate number 6363
Scott 406, 2¢ carmine, plate number 5817
Scott 406 var, 2¢ Bureau precancel, plate number 7052
Scott 406 var, 2¢ misperfed vertically, captured plate number 6646
Scott 406 var, 2¢, experimental electrolytic plating, plate number 6023 Only three plate number singles are known. (Image courtesy of Wallace Cleland)
Scott 406 var, 2¢, plate number 5946 over plate number 5954 The explanation for this is that an attempt was made to print from plate 5954, but the press was halted. Only the plate number was printed, which was apparently not noticed. New plate 5946 was then installed, and the supposedly blank sheet of paper was used to print the pane of stamps. Unique, ex Lilly.
Scott 406b, 2¢, partial double impression, plate number 6642 Image courtesy of Kelleher Auctions, from the Gerald Nylander collection
Scott 406c, 2¢ lake, plate number 6999
Scott 406a, 2¢ booklet single, plate number 6559 Scott 406aP, booklet single proof, plate number 6562 (Image courtesy of the National Postal Museum)
Scott 407, 7¢, plate number 6904. This was the first 7¢ stamp issued by the U.S. Scott 407P, 7¢, proof plate number 6903 (Image courtesy of the National Postal Museum)
Scott 414, 8¢, plate number 5721
Scott 414 var, 8¢ Bureau precancel, plate number 5722
Scott 415, 9¢, plate number 6915. This was the first 9¢ stamp issued by the U.S. Scott 415P, 9¢, proof plate number 6901 (Image courtesy of the National Postal Museum)
Scott 416, 10¢ orange yellow, plate number 5745
Scott 416 var, 10¢ yellow orange, Bureau precancel, plate number 5751
Scott 416 var, 10¢ yellow orange, RW perfins and precanceled, plate number 5847 (Image courtesy of Dan Ehrenftiel)
Scott 416a, 10¢ brown yellow, plate number 5751 (Image courtesy of Bill Langs)
Scott 417, 12¢, plate number 6910 Scott 417P, 12¢, proof plate number 6900 (Image courtesy of the National Postal Museum)
Scott 418, 15¢, plate number 5850 Scott 418P, 15¢, proof plate number 6809 (Image courtesy of the National Postal Museum)
Scott 418 var, 15¢ Bureau precancel, plate number 5771
Scott 419, 20¢, plate number 6926 This was the first regular 20¢ stamp issued by the U.S., other than revenue stamps and the 20¢ Parcel Post stamp one year earlier.
Scott 420, 30¢, plate number 6914 Scott 420P, 30¢, proof plate number 6899 (Image courtesy of the National Postal Museum)
Scott 421, 50¢ with single line watermark, plate number 7049
Scott 422, 50¢ with double line watermark, plate number 5749
Scott 423, $1 with double line watermark, plate number 5782
Imperforate, Single Line watermark
Scott 408, 1¢, plate number 6722
Scott 408 var, 1¢, single with Farwell Group 4 private perforations, Type A, photographically cropped from a larger block, plate number 6041
Scott 408 var, 1¢, single with Mail-O-Meter Type IV private vending machine perforations, plate number 5905
Scott 408 var, 1¢, single with "Kansas City roulette" private perforations, photographically cropped from a larger block, plate number 6018
Scott 409, 2¢, plate number 5872
Scott 409 var, 2¢ precancel, plate number 7575
Scott 409 var, 2¢ with plate crack at right, plate number 7582 (Image courtesy of Kelleher Auctions)
Scott 409 var, 2¢ with Schermack private vending machine perforations, plate number 7390
Scott 409 var, 2¢ with Mail-O-Meter Type IV private vending machine perforations, plate number 6192 (Image courtesy of Stuart Katz)
Scott 409 var, 2¢ paste-up with Mail-O-Meter Type IV private vending machine perforations, plate number 6658(Image courtesy of eBay / buystamps)
Scott 409 var, 2¢ with Farwell private vending machine perforations, plate number 5740
Scott 409 var, 2¢, "Kansas City roulette" private perforations, plate number 6491 The Kansas City postmaster had full sheets or the 2¢ imperforate stamps privately rouletted. Collector C.A. Spahte purchased many plate blocks and other position pieces over the counter. Many are backstamped "CAS".
Scott 409 var, 2¢, "Kansas City roulette" private perforations, imperf at top, plate number 6436 (Image courtesy of Kelleher Auctions)
1912-14 Washington-Franklin coil issues Perforated 8½, Single Line watermark
Scott 410, 1¢ paste-up singles, plate numbers 5735, 6008, 6487 and 6535
Scott
411, 2¢ paste-up singles, plate numbers 5960 and 6066
Scott 412, 1¢ paste-up singles, plate numbers 6040, 6114, 6115, 6117 and 6781
Scott
413, 2¢ paste-up singles,
plate numbers 6091, 6362, 6773, 6796 and 6840
1914-15 Washington-Franklin issues Mixed Perf 12 x 10 errors, Single Line watermark
Scott 423B, 2¢, perf 12 x 10 error, unique plate number single, 7082. (Formerly Scott 425d)
Scott 423D, 1¢ precancel, perf 10 x 12 error, unique plate number single, 7142. (Formerly Scott 424a) Most of these compound (12x10 or 10x12) perforation errors occurred in rows toward the middle of the pane so plate number examples are extremely rare. 1914-15 Washington-Franklin issues Perforated 10, Single Line watermark
Scott 424, 1¢, plate number 7164
Scott 424 var, 1¢ Bureau precancel, plate number 7464
Scott 424d, 1¢ single from booklet pane, plate number 7181 Scott 424dP, 1¢ proof from booklet pane, plate number 6885 (Image courtesy of the National Postal Museum)
Scott 425, 2¢, plate number 7079
Scott 425P, 2¢, proof plate number 7398 (Image courtesy of the National Postal Museum)
Scott 425 var, 2¢ from "Coil Stamps" pane, plate number 6568
Scott 425 var, 2¢, pair showing vertical plate crack, photographically cropped from a larger block, plate number 7582
Scott 425 var, 2¢ Bureau precancel, plate number 7234
Scott 425 var, 2¢ M-diamond-H perfin, plate number 7120 (Image courtesy of Chris Principe)
Scott 425e, 2¢ single from booklet pane, plate number 6711
Scott 426, 3¢, plate number 6863
Scott 426 var, 3¢ "pink back" variety, plate number 6749. The reverse of a single stamp is shown to the right.
Scott 426 var, 3¢ Bureau precancel, plate number 7272
Scott 427, 4¢, plate number 6730
Scott 427 var, 4¢ Bureau precancel, plate number 7263
Scott 428, 5¢, plate number 7241
Scott 428 var, 5¢ Bureau precancel, plate number 7237
Scott 428, 5¢ with perfins, plate number 6733
Scott 429, 6¢, plate number 5423
Scott 429 var, 6¢ Bureau precancel, plate number 5222
Scott 430, 7¢, plate number 6904
Scott 430 var, 7¢ Bureau precancel, plate number 6904
Scott 431, 8¢, plate number 5718
Scott 432, 9¢, plate number 6905
Scott 433, 10¢ yellow orange, plate number 7215
Scott 433 var, 10¢ brown yellow, plate number 6735
Scott 433 var, 10¢ Bureau precancel, plate number 7213
Scott 434, 11¢ dark green, plate number 7498. This was the first 11¢ stamp issued by the U.S.
Scott 434 var, 11¢ bluish green, plate number 7505
Scott 434 var, 11¢ precancel, plate number 7505
Scott 435, 12¢, plate number 6902
Scott 435a, 12¢, plate number 6900 Scott editors at the time left space to assign catalogue number 436 to an expected 13¢ stamp, but none were printed until the perforation gauge had been standardized at 11, and on unwatermarked paper (Scott 513).
Scott 437, 15¢, plate number 6819
Scott 438, 20¢, plate number 6908
Scott 439, 30¢, plate number 6914
Scott 440, 50¢, plate number 7057
Experiment with perf. 11
Scott 461, 2¢, single-line watermark, flat plate printing, perforated 11, plate number 7261 Postal officials were looking for a compromise between the perf. 12, which separated too easily, and the perf. 10, which was hard to separate and often tore the stamps. Logically, 11 was the compromise, and the experiment was done on a small sample of 2¢ stamps that were distributed mostly in the Washington, DC area. It was not extended to other denominations yet due to World War I. Perf. 11 was considered a success, at least for the "short" side of the stamps, but experiments continued for another decade before it was ultimately decided that 10-1/2 was the optimum balance between strength and separability for the "long" side perforations. USPS kept perf. 10 for coil stamps because they needed the extra strength to prevent early separation. But 11 x 10-1/2 was the standard perforation gauge for the next 80 years, with only occasional exceptions. Scott 461 was the first step in that direction.
Flat plate horizontal coil stamps, Single Line watermark, perf. 10 vertically
Scott 443, 1¢ paste-up single, plate numbers 6926, 6946 and 6958
Scott 444, 2¢ carmine, Type I, paste-up single, plate numbers 6894, 6898, 6995, 7120 and 7196
Scott 445, 3¢ violet, Type I, paste-up single, plate number 6050
Scott 446, 4¢ paste-up single, plate number 6025
Scott 447, 5¢ paste-up single, plate number 6733
Rotary endwise coil stamps, Single Line wmk., perf. 10 horizontally
Scott 448P, 1¢ coil proof, plate number 7433 (Image courtesy of the National Postal Museum)
Scott 449P, 2¢ Type I coil proof, plate number 6279 (Image courtesy of the National Postal Museum)
Scott 450P, 2¢ Type III coil proof, plate number 7561 (Image courtesy of the National Postal Museum) Plates of 150 (15 rows by 10 columns) were created for production of endwise coils (i.e., perforated horizontally at Top and Bottom) and have a single plate number at the left. Please report any partial plate number examples of the rotary endwise coils, 1¢ Scott 448, 2¢ Type II Scott 449, or 2¢ Type III Scott 450.
Rotary sidewise coil stamps, Single Line wmk., perf. 10 vertically
Scott 452P, 1¢ coil proof, plate number 7171 (Image courtesy of the National Postal Museum)
Scott 453P, 2¢ Type I coil proof, plate number 7174 (Image courtesy of the National Postal Museum)
Scott 454, 2¢ red, Type II, plate number 7502
Scott 454P, 2¢ Type II coil proof, plate number 7462. Leftover sheets of 170 were later perforated and sold to the public as Scott 539, "coil waste." (Image courtesy of the National Postal Museum)
Scott 455, 2¢ carmine, Type III, plate number 7625
Scott 455P, 2¢ Type III coil proof, plate number 7624 (Image courtesy of the National Postal Museum)
Scott 456P, 3¢ Type I coil proof, plate number 7441 (Image courtesy of the National Postal Museum)
Scott 457P, 4¢ coil proof, plate number 7440 (Image courtesy of the National Postal Museum)
Scott 458P, 5¢ coil proof, plate number 7435 (Image courtesy of the National Postal Museum) Plates of 170 (10 rows by 17 columns) were created for production of sidewise coils (i.e., perforated vertically at Left and Right) and have a single plate number at the top. Please report any partial plate number examples of other rotary sidewise coils, 1¢ Scott 452, 2¢ Type I Scott 453, 3¢ Scott 456, 4¢ Scott 457 and 5¢ Scott 458.
Scott 459P, 2¢ Washington Type I, proof plate number 6857 (Image courtesy of the National Postal Museum) Plates 6856 and 6857 were printed in experimental sheets of 170 (17 wide x 10 high) and produced only 10V coil stamps. Please report any partial plate number examples of the imperforate sidewise coil, 2¢ Scott 459.
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This page last updated February 22, 2026.
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