The more I dig, the more I find... The differences are down tube stickers on the Tiger and the American with none on the Typhoon, and chrome fenders on the American. I have no fenders, but no fading or remnants from stickers either. So this probably IS a Typhoon. I never thought about a Typhoon because I've always seen straight bar Typhoons, but 63' was the first cantilever Typhoon. Nice, thanks guys.
Carl.