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15c Early microphone. Progress in Electronics 1973
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15c Early microphone. Progress in Electronics 1973
Category: Commemorative Stamps
Tags: 15c | Early | microphone | radio | speaker | TV | camera | Progress | Electronics | 1973|
Stamp Title:
15c Early microphone. Progress in Electronics 1973
Issue Year:
1973  
Date of Issue:
10th July, 1973  
Size:
Face Value:
15c 
Stanley Gibbons Catalogue No:
1507  
Scott Catalogue No:
1502
Printer:
 
Issue Copies:
40 million 
Designer(s):
Walter and Naiad Einsel
Theme(s):
Science & Technology
Description:
15c Early microphone and radio speaker, radio and T.V. camera tubes. Progress in Electronics 1973