A Tribute to American Inventors 1983

  
 Price: $9.95

Stock #:558464
Type: First Day Cover
Postmark: 1983 Sep-21
Postmark City: Washington
Postmark State: DC
Stamp: 20c
Size: 3.75" x 6.5" (10 x 16.5 cm)
Additional Details:
Charles Steinmetz Electrical Theories, Edwin Armstrong Frequency Modulation, Philo T. Farnsworth First Television Camera, Nikola Tesla Induction Motor

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