Pontiac Hood Ornament, Guernsey/Bennett
Very easy to find in a number of colors on eBay. They're made by Guernsey Glass and have their "B" in a triangle--for the owner, Harold Bennett. They measure 4 1/2 inches from chin to end of headdress and have the word "Pontiac" under the headdress. Although they are frequently offered on eBay, they seldom sell unless the starting bid is $15 or less.