This transistor radio was made in black, gray, beige, cream or green plastic. The earliest newspaper ads I could find for this radio date to 1960.
Vintage Sony TR-84 Super Sensitivity 8 Transistor Radio - 1959 era Sony, Japan
Retekess V117 Portable Radio AM FM, Shortwave Radio with Clear Dial, Transistor Radio with Best Reception for Seniors (Black) : Electronics
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WJOE Radio
Transistor Radios, Radio, Radio, Gramophone, Phone, Collectables - PicClick AU
Vintage 1960s Sony TR 84 Transistor 8 Radio in Excellent Condition works
WJOE Radio
Pocket radio hi-res stock photography and images - Alamy
Vintage Sony TR-84 8 Transistor Radio Super Sensitivity
radiojayallen Jay's Radio Reviews, Comparisons & Restorations