Marked: "Grebe Radio / Richmond Hill, N.Y. / Type RORN / Tuned Radio Amplifier / 150 to 3000 M. / Serial No. 129." Plate: "Manufactured Under Grebe Patents Granted and Pending." Specimen is an early ...
Marked: "Grebe Radio / Richmond Hill, N.Y. / Type CR-8 / 150 to 1000 M. / Serial No. 868." Plate: "Licensed Under Armstrong Patent No. 1113149 Oct. 6, 1914 / For Amateur or Experimental Use Only. / ...
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