Parade of Postal Progress - The Stawecki Book

 
 
 

Dummy  Stamps Intro (click here)

Stampsjoann (click here)

 

Page 4 shows a 4¢ #10 envelope (Krause-Minkus EN825, Scott U536) which has been overprinted "CANCELED".  These dummy envelopes were used to demonstrate the new postal equipment.

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Dummy  Stamps Intro (click here)

Stampsjoann (click here)