CD 126.4 AM. INSULATOR CO. (Dome) 4. ( Base) AM INS CO / PAT SEP 13 1881 One small tick to the side. The Embossing is perfect on both the dome and base. A very difficult insulator to obtain without damage to the base embossing. ...$60.00... Plus postage. Picture taken outdoors. Buy with confidence! I ship USPS Priority Mail, Payment may be made by Pay- Pal or other forms. NO AUCTION TO BID, NO BUYERS PREMINUM TO PAY---- WE DO NOT SELL FAKE, PAINTED, STAINED or ALTERED INSULATORS. Don't wait for the sale it's not going to happen.