Very nice CD 126 Brookfield [350]. This is the one with the March 20, 1877 patent date among others. No street address. Embossed nice & strong. Mold number 11. Price $10.00 plus shipping. Check out my other listings. I will gladly combine on shipping. I can get as many as 5 insulators safely into those $7.70 flat rate USPS shipping boxes.