The American Plate Number Single Society




Becoming a member
Officers and Directors


Plate Numbers
Hebert's Catalog
Classified ads



American Philatelic Society
United States Stamp Society
Linn's Stamp News
Scott Publishing


Disclaimers and other legal stuff

The usual disclaimers, qualifications and warnings apply. Additional qualifying notices include, but are not limited to:

  • Images  Images are optimized for online display. Images are not to size, not to scale. They are reproduced from scans from a number of sources, done through a variety of technologies and processes, and at varying resolutions. In some cases where smaller than expected images are presented, it is because attempts to increase the size to conform more closely with other images on the website resulted in loss of image quality. Most images are jpg or jpeg files, but a few are png or bmp or gif or other file types. As of January 2020, our web site displayed and described over 8200 images of plate number singles, from 1851 to the latest issues.
  • Copyrights  Images of U.S. stamps issued since Jan. 1, 1978 are copyrighted by the U.S. Postal Service. Stamp images may be reproduced in color if they are less than 75% or greater than 150% of their original size. This is impossible to predice, as everyone has different browsers and screen sizes. Stamp images may be reproduced in any size if they are used in the promotion of the hobby of philately.
  • Trademarks  Some names, images or logos are trademarks, service marks or registered trademarks of various organizations or companies. The legal symbols "(R)" or "(TM)" or "(SM)" have been included when feasible, if the image or logo provided to us included same. All such trademarks are the property of their respective owners. Rectification of errors in this respect can be made upon request to the Webmaster.
  • Content  Copyright is claimed for all copyright-protected and protectable expression within this website, for the work of the author. Of course, all World Wide Web browsers request and receive an electronic "copy" of each web page, including text and images, in order to display the information. That doesn't count.
  • Ownership attribution  Many of the stamp images are of common stamps, others are not. We are happy to acknowledge the owners of unique, unusual or specific stamps when this information is known and if the owner so desires ("Image courtesy of..." or "From the collection of...", for example). Attribution requests can be made to the Webmaster.
  • Opinions  Opinions are those of the respective authors and not necessarily of APNSS, its officers or members.
  • Links  We provide occasional links to web sites of other philatelic organizations, clubs, societies, individuals, and businesses, when the topic is felt to be of interest or useful to APNSS members or other visitors to our web site. The links are tested when they are created, and worked at the time. However, other sites' policies, web hosts, communications, security, technical practices and prowess are beyond the control of APNSS. If a link stops working, please notify the Webmaster and we will attempt to rectify it on our own or in communication with the webmaster of the linked site. However, we cannot guarantee that all links will work or all linked sites will be accessible and/or fully functional at all times. Links may be added, modified or removed without notice.
  • Privacy  APNSS does not harvest, track or share visitors' personally identifiable data such as user names or email addresses. Personally identifiable data may be voluntarily disclosed by visitors who communicate with us through emails, comments, a guestbook or similar communications. Aggregate information (such as a "number of hits" counter) is collected to determine web site usage and similar statistics. Aggregate information is collected by a third party and is not traceable to individual users.
  • Cookies  APNSS does not use cookies, to our knowledge.
  • Technical stuff 
    APNSS web pages were originally created using Microsoft FrontPage V10 (2002).
    Around 2012, Microsoft stopped supporting FrontPage and it was no longer possible to upload pages with new images.
    Starting in 2013, new text pages have been created using Adobe Dreamweaver CS6 Version 12. All new pages were done in Dreamweaver, and the conversion process for old pages was essentially completed by late 2019.
    The vast majority of stamp images are .jpg and .jpeg files, with a very few .png, .gif, .bmp and other file types.
    From 2003 to 2012, web pages and image files were uploaded through WS_FTP Pro.
    Since 2013, web pages have been uploaded using Filezilla.
    Web hosting is arranged through Webkeepers and successor companies. Technical info (accurate as of June 2016):
    • CPU:  Pentium III / 1000MHz dual processor
    • Memory:  1024 MB
    • Hard disk:  72 GB (RAID1:Mirror)
    • OS:  FreeBSD 4.3-RELEASE
    • HTTP server:  Apache 1.3.34 (suEXEC enabled)
    • FTP server:  ProFTPD 1.2.9
    • Mail server:  Sendmail 8.11.7p1
    • POP server:  Qpopper 3.1.2.
    • Data base server:  PostgreSQL 7.1.2
    • Perl:  5.00503
  • Browser support  The site works best on IE5+, Google Chrome, or Mozilla Foxfire, with Javascript enabled. Images with .bmp or .gif extensions occasionally do not display, especially in IE. We usually attempt to rename and republish such images as .jpg or .jpeg files, as this seems to resolve the problem. If you encounter problems, please contact the Webmaster at apnss.sec at gmail dot com (intentionally not linked to reduce spam).
  • Comments  APNSS welcomes comments and suggestions. Email the Webmaster at secretary at apnss.sec at gmail dot com or contact any Society officer through the Membership web page.


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This page last updated January 5, 2020.