This insulator was manufactured by PP Inc to commemorate their 100th year in business. Made of porcelain in one of their production moulds and given a gorgeous cobalt blue glaze,24 K gold overlay for the words and finally a perfect glazing. The gold commemmorating words are 1894-1994 CENTENNIAL COMMEMORATIVE- with PP in the very center. Insulator is exceptional in condition and aren't a whole heck of a lot of these around. I really cannot see anything wrong with it. This will make the perfect addition to the serious porcelain collectors collection. $40 delivered. NOW $19 + $7.50 shipping.