The only embossing on this insulator is on the front skirt. Embossed PATENTED. Really wonderful condition. Has a small open bubble on rear base, with the teensiest of nicks off the edge of that. See second picture of base. Then a few pinpoint ticks and a pencil eraser light rub int the groove. Only mention these things for the most fussy of you out there. Most would call it VNM. $135 plus actual shipping.