I was going trough my late grandfather's belongings and found a box choke-full of stamps. Are they valuable? What should I do with them? [more inside]
posted by Sijeka on Nov 29, 2008 - 7 answers

I'm looking for an authoritative price guide for postage stamps, primarily US stamps from prior to 1960, similar to the Overstreet guides printed for comic books. There are a number of such stamps I would like to look up. Online would be great, physical guides that need to be purchased would be fine too. Thanks in advance.
posted by John Kenneth Fisher on Nov 23, 2007 - 9 answers

Are stamps a legal form of currency? [more inside]
posted by parmanparman on Sep 29, 2006 - 16 answers