American Philatelist: Issue of March 2007, page 217

stamp errors, stamp errors, EFO, Youngblood, illegal reuse, cut-out, phosphorescent, zinc orthosilicate, calcium silicate, tagging, color changelings, postal stationery, meter imprints, non-postage stamps, Domestic Mail Manual, DMM

Keywords: stamp errors, stamp errors, EFO, Youngblood, illegal reuse, cut-out, phosphorescent, zinc orthosilicate, calcium silicate, tagging, color changelings, postal stationery, meter imprints, non-postage stamps, Domestic Mail Manual, DMM

John M. Hotchner

Errors, Freaks & Oddities

The Columns
from Linn's

Computer-Vended Postage

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