US Stamp #1502 - 1973 15¢ Microphone & Speaker, EzGrade™ VF (Very/Fine), MNH (Mint Never Hinged), OG (Original Gum) Block of Four

New Stamps, EzGrade™ VG/F (Very Good/Fine) Condition. This comes with a Certificate of Measurement & Grading from EzGrade.™ View Photo for details on stamps. I have listed photos of the exact stamps you should receive, both Front and Back 

  • Series: Electronics Progress Issue
  • Face value: 4*15¢ - United States cent
  • Issue Date: July 10, 1973
  • First City: New York, NY
  • Emission: Commemorative
  • Print run: 39,000,000
  • Printed By: Bureau of Engraving and Printing
  • Printing Method: Lithographed, Engraved.
  • Perforations: 11
  • Color: Multicolored

Description: Microphone, Speaker, Vacuum Tube, and TV Camera Tube

Celebrates the progress made with component parts in the electronics field. Emile Berliner invented the microphone; Thomas Edison, the vacuum tube; and Vladimir Zworykin, the photoelectric cell, which brought television to life in 1928.