E. F. Johnson Company Catalog. Rotomatic Catalog No. 715. Material: paper. Size: 8 1/2" x 11". Description: red cover; black and white photograph of the earth; black and white sketch of a rotomatic antenna; E.F. Johnson logo bottom right; white and black print: "Work More DX with the new Johnson all-weather Rotomatic beam rotator beam antennas, E.F. Johnson Company, Waseca, Minnesota; 2 pages. Logo in use from 1938-1956.
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.