E. F. Johnson Company Product. Variable Condenser Type G. Material: metal, stone. Size: 2" W. x 2 3/4" L. x 2" D. Description: aluminum, steatite - Type G variable condenser. "Johnson" cast in steatite end plate. 9 plates.
E.F. Johnson collection. Catalog references: Catalog 965, page 1. (at E.F. Johnson Co. museum). 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.
