1.88.186

Insulator,Thru-panel

1940

E. F. Johnson Company Product. Thru-Panel Insulator. Material: ceramic. Size: 1 5/8" W. x 4 1/4" L. Description: white porcelain - Type 135-48 thru-panel insulator. See "Comments". Product on display board.

E.F. Johnson Co. Collection. Reference: Catalog # 971, page 9 (in 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.