E. F. Johnson Company Product. 9 1/2" x 7 1/2" black and white photograph of the E. F. Johnson Co. radio product, the Shure Mic (microphone), DTMF, dated 9-94.
Waseca business: E.F. Johnson Co.; E.F. Johnson Company; E.F. Johnson Corporate Headquarters; E.F. Johnson Company Corporate Headquarters; E.F. Johnson Co. Corporate Headquarters; E. F. Johnson Co.; E. F. Johnson Company; E. F. Johnson Corporate Headquarters; E. F. Johnson Company Corporate Headquarters; E. F. Johnson Co. Corporate Headquarters.
