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Insulator, Imperial

These 4-inch tall non-functional insulators were produced by Imperial to commemorate the 60th anniversary of the Telephone Pioneers in 1971. The top has “No 1” and the IG mark. The back says “Human Service.” This example, in amber, sold on eBay in 2006 for $26. Also in 2006 on eBay, another amber brought $19 and one in smoke brought $21.