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USA - CIRCA 1973: A Stamp printed in USA shows the Microphone, Speaker, Vacuum Tube, TV Camera Tube, Electronics Progress Issue, circa 1973

Stock Photo:
Image ID: 97083356
Release Information: Editorial Use Only. Use of this image in advertising or for promotional purposes is prohibited.
Editorial Credit: AlexanderZam /
500x318 6.9"x4.4" (72dpi) 230 KB
1000x635 3.3"x2.1" (300dpi) 801 KB
3228x2050 10.8"x6.8" (300dpi) 5.4 MB
6456x4100 21.5"x13.7" (300dpi) approx.16.5 MB
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