American Society for Philatelic Pages and Panels: http://www.asppp.org/
United States Postal Service: http://www.usps.com/
Betsy & Chuck’s Christmas Seals & Stamps for Collectors: http://betsychuck.home.att.net/
This page was created on May 9 2005, and last updated on July 23 2007, by Michael C. Adams. E-mail me at [email protected] for more information.