Plate number single 20079R
Glossary of stamp collecting terms
Several organizations' web sites include extensive glossaries of
philatelic terms. This site concentrates on terms specific to plate
number single collecting.
ABNC - American Bank Note Company,
independent contract stamp printer.
AP - Ashton-Potter USA, independent contract stamp printer.
APNSS - American Plate Number Single Society.
apnss.org - web site of the American Plate Number
APS - American Philatelic
AVR - Avery-Dennison, independent
contract stamp printer.
Back number -
sequence or counting number printed on the backs of modern coil stamps, to
assist in accounting for partial coil rolls and in counting out coil
stamps for sale.
Back plate number - plate
number used to print text or designs on the back of a small number of U.S.
BCA - Banknote Corporation of
America, independent contract stamp printer.
BEP - Bureau of Engraving and Printing, government
printing agency responsible for printing virtually all stamps from 1894 to
1980's, and most coil stamps through 2005.
Copyright single - single stamp with USPS copyright notice printed in the
Die cutting - method of
separating individual stamps that have been printed with
pressure-sensitive adhesive. Die cutting can be straight or
serpentine to simulate traditional perforations.
Duck stamp - federal hunting permit stamp, so called
because most of the designs include ducks or geese.
Durland catalog - catalog which lists U.S. and
related plate numbers and prices for plate blocks. Published by the
United States Stamp Society (USSS).
number - faint impression of a plate number appearing on an adjacent stamp
or on the back of a stamp, generally caused by incomplete wiping of ink
during the printing process.
catalog - catalog and check list for U.S. plate number singles.
Published by the American Plate Number Single Society (APNSS).
"Horse blanket" - large plate blocks with multiple
plate numbers in the selvage, common from the 6¢ through 15¢ eras,
typically requiring blocks of 8, 10, 12 or even 20 stamps for a complete
Lick-n-stick - stamp with traditional water activated
Line pair - pair of coil stamps with a
joint line printed between, at the perforations, indicating where the
printing plate was joined.
- plate number, ZIP, copyright notice, pane position, printing aids and
other text or markings appearing in the selvedge of a pane or booklet.
Mint - unused stamp with full gum and no defects, as
issued by the post office.
MNH - mint, never
NGAI - No Gum As Issued. The
stamp has no gum, but it is important to distinguish this expected and
acceptable condition from stamps that are "no gum" because they have been
soaked or damaged. In this case, the stamps were issued without gum.
Common for many U.S. souvenir sheets of the 1930's.
Non-denominated - stamp issued
without a denomination printed on its face. Such stamps are either
due to be issued very close to an anticipated rate change, or are prepared
in advance to be used at the new rate ("contingency stamps").
PB - plate block. Traditionally, a block of 4
stamps from the corner of the pane, including the plate number and all
adjacent selvedge. If the plate number does not appear in the corner
of the pane, a block of 6 stamps from the center of the pane, including
the plate number and all adjacent selvedge.
PB4 - plate block of 4 stamps and all selvedge. Standard collecting
format for blocks of ordinary rotary press stamps.
PB6 - plate block of 6 stamps and all selvedge.
Standard collecting format for blocks of ordinary flat plate stamps.
PB8, 10 or 12 - plate block of 8, 10 or 12 stamps and all selvedge.
Standard collecting format for stamps of the 6¢ through 15¢ eras where
multiple plate blocks were printed in the selvage for each color.
Plate number - serial number assigned to each
Plate Numbers -
regular newsletter of the American Plate Number Single Society, published
several times a year.
Plate number single:
Single stamp from a sheet, pane, or booklet, including all adjacent
selvedge and one or more plate numbers. Single stamp from a coil or
booklet with the plate number printed on the face of the stamp.
PNC - plate number coil
PNS - plate number single
PSA - pressure-sensitive adhesive or "self adhesive"
PS3 - plate number coil strip of 3 stamps, with the
stamp with the plate number appearing in the center. Plate strip of
3 stamps, including the plate number and any other marginal markings.
PS5 - plate number coil strip of 5, with the stamp
with the plate number appearing in the center. Most common format
for collecting modern coil multiples.
plate strip of 10 stamps, including the plate number and other marginal
PS20 - plate strip of 20 stamps,
including the plate number and other marginal markings.
SA - self-adhesive
Self adhesive - stamp issued with a self-sticking
backing instead of traditional water activated gum. Generally
printed on a shiny backing paper to allow for peeling.
Selvedge or selvage - paper margins or edges of the stamp sheet, adjacent
to a stamp.
SSP - Sennett Security Products,
independent contract stamp printer.
duck - state-issued hunting permit stamp.
- Stamp Venturers, independent contract stamp printer.
USSS - United States Stamp Society
WAG - water activated gum
ZIP single - single stamp with adjacent "Use ZIP
code" text or image and all applicable selvedge.
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Webmaster: apnss.sec at gmail dot com.
This page last updated
May 30, 2011.
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American Plate Number Single Society. All rights reserved.