E. F. Johnson Company Product. 7 1/2" x 9 1/2" black and white photograph of an E. F. Johnson Co. radio product, the Series 5800 Handheld; 5852, 5853, 5862, 5863; Challenger 5862 and Challenger 5852; with and without DTMF, (7 and 15 channels), dated 3-89