Snyder-Hunt nail knob patented March 1, 1904. The grouping I own were made by Illinois Electric Porcelain Co. They are recessed embossed on one side: " MACOMB/ PAT./ MAR-1-04 " The other side is also recessed embossed: "S-H CO/ NO 1. All have in-service chipping around the nail holes and other places. Asking $10 apiece, or 3 for $20 with free delivery to the Springfield Show. Early orders/payments will receive the best condition pieces.

Featured in a PIN article, All Insulators/Crown Jewels of the Wire Magazine dated Spring 2021. These knobs were found in an Iowa home remodel.