The 7R prefix was commonly used by Hallicrafters to designate consumer-grade broadcast band receivers. There were some general-coverage receivers manufactured with this prefix-all of which are rare.
7R-10 7 tube 2 band radio in bakelite case. Frequency coverage standard AM and FM bands, IF 455kHz and 10.7MHz. 7R10 is green, 11 is brown and 12 is ivory color. Production year 1952-54.