The American Plate Number Single Society

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Scott C13, plate number 20079
 

Welcome to the official web site of the American Plate Number Single Society. APNSS is a volunteer-run association of stamp collectors organized to promote interest in plate number singles and other marginal markings.

To join APNSS or request an application form, click here or on the stamp shown above, or email the Secretary at:

Click on the links to the left to navigate around the web site. These links appear on each web page.

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Last updated November 9, 2024.

APNSS is Affiliate #178 of the American Philatelic Society.

 

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