Don, that is a cool sign, I have never seen one either. I just picked up another B/A Dealer magazine, they have great pictures of items available from B/A and I can get a grasp on different items and signs etc and the years available.
Johnay, I remember as a kid I had a number of those cards, I have gone back to the farm numerous times to try and find even a few of them and can't find any of them. Ma must have cleaned up after me at one point and threw them away maybe, sniff.