In all of my 55+ years of collecting insulators I do not recall ever seeing one of these. Mold Line Over the Base on a Brookfield pony. I didn't even know they existed! I thought I had really found something! I was really pumped up until I got home and looked it up in my latest price guide. Two to three bucks! Aw come on! Who out there has ever seen one? Oh well. At least mine is a new listing. It has a number 3 on the top.