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| APS Affiliate #103 |
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| ATA Chapter #94 |
Review in Stamp News, Issue: November 2023
Review in Topical Time, Issue: November December 2012
Review in Topical Time, Issue: November December 2011
Review in Topical Time, Issue: September October 2011
Review in Topical Time, Issue: March-April 2011
Review in the Philatelic Communicator, Issue: 3rd Quarter 2009
Review in the Global Stamp News, Issue: October 2005
John M. Hotchner
Errors, Freaks & Oddities
The EFO Collector
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John M. Hotchner
EFO Corner
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from Linn's
from Linn's
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on
Computer-Vended Postage
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