Wednesday, December 12, 2012

UNITED STATES OF AMERICA STAMPS




Churchill 5 cent U.S. Postage stamp
 


1973 Progress in Electronics Stamp


Stamp Title: 6c Marconi's Spark Coil. Progress in Electronics 1973
Issue Year:1973 
Date of Issue: 10th July, 1973 
Face Value:6c  
Stanley Gibbons Catalogue No:1505 
Scott Catalogue No:1500
Issue Copies:60 million
Designer(s):Walter and Naiad Einsel
Theme(s):Science & Technology
Description:6c Marconi's Spark Coil and Gap (1901). Progress in Electronics 1973

1973 Progress in Electronics Stamp

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