I had to look this one up - don't ever remember seeing one. Maybe because in that time period (post '64) I'd pretty much quit being interested in ANY Winchesters!
Interesting rifle. I'd say you got a very good deal on it!
Made from '67-'73. Mine must be a 1967 as it has no serial number. Only .22 I've seen with controlled round feed. It's pretty dang accurate so far. Been shooting "gumballs" in the back yard with subsonics.