For your consideration, here is a PNPMA Tie Tac Pin, Pacific Northwest Personnel Management Association, now the NHRMA. It is marked UH on the back. It has some wear on it. The post is bent up some. It is 3/4 inches tall and 1/2 inches wide. Item pictured is the actual item up for sale and comes from a non-smoking household. (197.247h-.3ob)
[Thanks for looking!]