My wife and I were at the Ford and Mercury Restorers Club meet in Belleville, MI years ago and several of the local venders had them for sale. One of the friends of mine from my trips up there gave me one. I used to enjoy going up there, I figured if you couldn't find a Ford part in Detroit, where are you going to find one? They would often have what they called lunchbox parts for sale. One year I got lucky and found a NOS 37 pickup map light for $15.They usually had a lot of the tool check items in addition to the kinds of things you find at typical swap meets.