I just found these.....The cross top OB M-4395 is in mint condition! ... The base insulator with the iron top M-4765 only has a crack in the top ... The base insulator once had a threaded pin in the cap that the cross top was mounted on creating a double stacked multi part. The base insulator has standard threads and weigs in @ around 65-70 pounds...the top is 17" wide !!! These were used only on a short section of line a few miles long between Rochester and Syracuse, New York. Here is what the line looked like in the 1930's...[id=322181234]