I went back and checked it, I don't see any 1 . I had it looking good long time ago, Doing a refurbishing on it. but she is showing her age again. But I'd bet you a hundred dollars to a donut, She'll fire right up... I got to get a photo or two on here.Yes, 9910 would be May of 61.' Just make sure there is no 1 in front of the 9. It would still be a 61,' just made in Nov.
54675 would make it a March of 63' manufacture.