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