> Karl spake: > << we've been using them for years in Oz.. Long after the letter has > decomposed in the letter box,the stamps remain >> To wit Rich asked politely: > I don't doubt that the stamps (in sheets with adhesive backing) will last > when affixed to a letter, but will they separate from their backing when, for > example, they are framed and stored vertically? Once bonded, the ones we have here seem reluctant to seperate under any condions - maybe soaking them in solvent will get them off, let me just try.. success! I just applied a stamp to an envelope then soaked it off by applying a liberal splodge of acetone to the envelope paper.. the inks on the stamp were fine and the stamp was able to be eapplied elsewhere afterwards :-) > The gummed variety of stamps > didn't have the issue of backing material to be concerned with--just > cockroaches and other bugs being attracted to the glue. you could use these ones as flypaper > Should they be given the same archival considerations as a photograph, or are > there other issues to be concerned with? Like anything new, only time will tell but I can safely say that neither water nor acetone appear to harm them in any way during the early stages of their lives. Karl