Tougher CREB to find, not many around. This is the [137] listing in the guide. Note there are two different types of narrow domes from talking with Lee Brewer. There's a bullet type and this, a slightly more round style, but still has the signature wider wire groove. The insulator is in great shape VNM, only two small open bubbles on the inner skirt and a very tiny flake on the base that's hardly worth mentioning.