Genuine 1970s Yale University Hat This incredible 1970s Yale University cap was given to me by a former Yale Student. It features a tag that says University Square, professional model made in the US. It also has a union-made tag with a size 7 ¼ . It has some coloration consistent with its age that I have not attempted to remove, and this is pictured, otherwise in excellent condition. Measurements are in inches: Crown: 21.5 (not adjustable) Brim to brim: 8 Height: 6 Condition: Excellent Size: OS Brand: Yale Vintage: 70s 💕 Smoke, negativity-free. Stored in a professional environment. :)