Robert A. Siegel Auction Galleries, Inc. Sale - 973 Page 30
Stamp Smarter - Private Perforations
Values of US Stamps Scott Catalogue #482A: 2c 1916 Washington Imperf
US: Vending & Affixing Machine Perforations (Schermack, etc) | The Stamp Forum (TSF)
United States of America - 1916 USA 3c Violet, Imperforate, Schermack Type III Private Perforation (Scott 484). was listed for R3,250.00 on 23 Oct at 21:16 by Gideons Stamp Emporium in Pretoria / Tshwane (ID:485262203)
Siegel Auction Galleries — Power Search Results
US stamps - Identify private perforations
Robert A. Siegel Auction Galleries, Inc. Sale - 973 Page 30
Rare Genuine Scott #343 PSE Cert Scarce Schermack Type-Iii 45689 Control Mark | United States, General Issue Stamp / HipStamp
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Untitled
ScotScott# 343 FRANKLIN, SCHERMACK TYPE III PERF'D CONTROL MARK BM2291 | The Stamp Nut
484 Used with Schermack type III and gauge 13 perfs, PSE Certificate # 01305655 | eBay
Robert A. Siegel Auction Galleries, Inc. Sale - 990 Page 19
Four impressive name collections to be sold during Feb. 28-March 2 Siegel auction series
Stamp 1923 USA 1c Washington with Schermack type 3 trial coil perforation Sc 481 | eBay
Stamp Smarter - Private Perforations
Sale No. 1234 — Lot 343 — Siegel Auction Galleries
Values of US Stamps Scott Cat. 484 - 3c 1917 Washington Imperf
408 1c Washington Used with Schermack Vending Perforations | United States, General Issue Stamp / HipStamp
Siegel Auction Galleries — Power Search Results
US stamps - Identify private perforations
