Precious,
I am one on many who collect these stamps. They are interesting but not that easy to find. Do you run across many?
bulldog

 
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I have been collecting these all along. Hard to keep up with the new varieties. By the time you become aware of a new item, it often is out of use again already. See here for an online catalog. The true computer stamps are those listed in the postage meter catalog under the group PC, which are generated by personal computer and and valid only on the date generated. Good to bring these stamps to the fore before Christmas, as all the ebay merchandise carries the modern versions of these stamps.

CVP or personalized (Zazzle.com etc.) stamps, which have unrestricted validity, are often lumped with this group, but really are a somewhat different animal. There is a brand new catalog out for these stamps: USA: Variable Denomination Stamps (1989-2013).



I have Karim's original earlier (2010) German edition. Lots of detail for those that are really into these stamps.

 
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Does anyone trade these ?
I have a lot of unused Zazzle and Stamps.com that I would like to trade for other unused USA computer generated stamps (Zazzle, Stamps.com, Endicia, etc,)

 
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