Richard Feynman Stamp
First Day Covers

A number of companies regularly design, print, and sell commemorative illustrated envelopes or cards with hand-cancelled stamps postmarked with the date of issue (cachets, to a philatelist).  A few companies have made available cards commemorating the issue of this set of American Scientist stamps.  Neither nor Friends of Tuva are associated with any of these companies and we don't endorse any of them, but we provide this information as a service for those who are interested.

1. I'm certain some philatelist will correct me if I've explained this incorrectly!

This page last updated Monday, October 10, 2005 11:17:27 PM -0400