This is a single insulator I am offering, with views of the front and rear shown in one photo. If you do not personally consider ice blue to be off clear, then this insulator will represent an unlisted variety. This piece features two errors, a reversed N in HEMINGRAY, and it is missing the number 2 from the patent date. As a bonus, there are a two small bits of white firebrick embedded in the glass. Two chips on base of rear skirt as shown, displays mint from the front, where a couple drips are halved. There are only a handful of these around. $215 postpaid.