This CD 106.3 is embossed DUQUESNE on the front skirt and GLASS. CO . on the reverse. The insulator is in very nice condition. Two pin pricks on the dome and then some minor roughness in the glass around the top of the upper wire groove ridge. I've seen this many times before on the Duquesne's. More than likely it came that way right from the factory. Asking just $12.00 plus actual shipping cost. Check, money order or PayPal, no fee.