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Mint plate block of four 3-cent US postage stamps commemorating the Iowa Territorial Centennial.
Issue Date: August 24, 1938
First City: Des Moines, IA
Printed by: Bureau of Engraving and Printing
Printing Method: Rotary Press
Perforations: 11 x 10.5
(Note: photo is representational; actual plate number and or position may vary.)