circa 1959 Barlow 6T-180
Shirt pocket radio, thermoplastic cabinet
4 5/8 x 2 13/16 x 1 1/4 inches / 117 x 71 x 32 mm
Six transistors (Toshiba), superheterodyne circuit
Manufactured by Fuji High Frequency Radio Lab. Co., LTD. (Constant), Japan
A classic Japanese shirt pocket radio made by Constant and found under several other names as well (Crestline, Imperial) — the tuning dial is an obvious automotive "speedometer" visual reference to the times.