1955 GE 677
Coat pocket radio, thermoplastic cabinet
5 1/2 x 3 1/8 x 1 1/2 inches / 140 x 79 x 38 mm
5 transistors (GE, 2N44, 2N78,2N135, 2N136, 2N137, +1N64 diode), superheterodyne circuit
Manufactured by General Electric Corp., USA
GE's first transistor radio, model numbers 675 — 678 according to cabinet color. I no longer own any GE 670-series radios, so this crappy image is a scan from Marty Bunis's "Collector's Guide to Transistor Radios, First Edition," a photo of my own GE 677 used in the book.