Calhoun, I'm pretty sure Eaglemountainman (Tim) has a 1959 99F .250-3000 with a 1:10.
I don't remember what year it was but it is 1-10".
I've got quite a few around that time frame but am working ungodly hours at the moment and would rather eat, shower, sleep, and sip cocktails in the late evening than document rifles.