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How to Detect Damaged, Altered, and Repaired Stamps

Paul W. Schmid

出版	Krause Pub., 1996
主題	Antiques & Collectibles / Stamps
ISBN	08734145439780873414548
URL	http://books.google.com.hk/books?id=0PIkAAAACAAJ&hl=&source=gbs_api

註釋

Avoid costly mistakes. Paul Schmid's new edition explains how to detect alterations that can drastically affect a stamp's value and how to recognize regummed, reperforated, repaired and otherwise altered stamps.