Motorola 51X16 S grille radio, circa 1941, black case and knobs with red handle and face. Height 15 cm x. Width 25 cm x. Depth 14.5 cm black and red is a very unusual colour combination for radios of this period. Literature: See Sideli John Classic Plastic Radios of the 1930s and 1940s, New York 1990 pp. 111 for similar example