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| APS Affiliate #103 |
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| ATA Chapter #94 |
U.S. Stamp News: Issue of July 2006, page 16
Keywords: stamp errors, computer vended postage, stamp errors, EFO, Ryskamp, computer vended postage, Neopost, grid, graph encryption, grill, security, Scott CVP39, Scott CVP42, Scott CVP43, Scott CVP53, tete-beche, Warrenton, Scott CVP41, Scott CVP40, SimplyPostage.com, postage, Neopost Online
John M. Hotchner
Errors, Freaks & Oddities
The EFO Collector
The Archives
John M. Hotchner
EFO Corner
The Columns
from Linn's
from Linn's
Articles By
Wayne Youngblood
AG
Files
Ryskamp
on
Computer-Vended Postage
Not
quite
EFOs