In the group picture this is the insulator fourth from the left. Stamp embossed on front skirt HEMINGRAY / No 9. On rear skirt PATENT / MAY 2 1893. Has perfect sharp drip points. This one is a very good even jade. There are also a number of small bubbles in the glass. Condition is excellent, one open end of a small (pin-head size) bubble on back dome is all I can find wrong with it, and that isn't even damage. You will not be disappointed! $35 plus S&H and insurance.