I checked my boats. They have logos identical to the one in the picture. The serial numbers were on little white strips that are laminated under some clear plastic just above the forward drain hole on the left side of the boat. The serial numbers have faded. One serial number is totally illegible and I can just barely make out AIRE on the other one but no numbers. I took them on a Middle Fork Salmon trip in 1990 so they are at least that old.
I'm not happy about being over the hill, but I am grateful there wasn't a cliff at the summit! - Frank and Ernest