Here is an insulator that is very seldom offered, yet I had one for sale a few weeks ago here on Icon. Then there was one just offered in a catalog auction. Low and behold if there wasn't one for sale at today's Yankee Pole Cat Insulator Show. The embossing is M & H PAT MAY 18 1915 The M is for Manwaring and the H is for Hessel. This particular insulator was "harvested" in Wallingford, CT. in the early 1970s. There is a chip on the inner portion of the insulator that I will show in a second photo. I'm offering this very desirable insulator for $495.00 and that includes the shipping and full insurance anywhere in the U.S.