Description: RCA advertisement for the Radiotron tubes and the Radiola tube radios. Sourced from National Geographic magazine Vol. 45 No. 1.
Document type:
Author: Radio Corporation of America, Sales offices
Language: English
Publisher: National Geographic Magazine
Place of production: Washington, D. C., United States
Date: 1924-01
Dimensions: height 25.5, width 17.4
NAC: 2008.1724