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U.S. Stamp News: Issue of September 2006, page 26
Keywords: stamp errors, computer vended postage, stamp errors, EFO, Ryskamp, computer vended postage, Neopost, blot-in-flag error, Hayward, 2002, Scott CVP39, blot error, 2003, Scott CVP46, Scott CVP44, Scott CVP48, Scott CVP47, Scott CVP52, Scott CVP53, Scott CVP43, Scott CVP45, "ERROR" error