E. F. Johnson Company Product. Radio Components. 10" x 8" black and white photograph of a group of three E. F. Johnson Co. products, ham radios or amateur radios; each image is air-brushed and positioned on this print with catalog information captions; E. F. Johnson Co. and Viking identification in lower right corner, typical of press kit items; shown is the Viking Invader transmitter and Viking Invader 2000 ham radios.