This CD 162 Ft W. E. Co. embossed insulator- EIN [030] is joined by an early letterhead from the Fort Wayne Electric Company of Fort Wayne, Indiana. The letterhead is dated: Feb 9, 1891. The order was for 2 dynamo insulators, and 12 fuses. I purchased the insulator in 1996, and the letterhead sometime in the past 2 to 10 years.