For the Untidy States , and New Zealand , They were RRRR's . T 120 R . Mate .
T120R
D11600 odd is late 61 . maybeeven Oct .
WHEREAS 50s T 100 R , RR , & RS were RACE , Like ' C ' ( comp . )s . but better . !Fair Dinkum .
650 ' C ' was OFF ROAD , Comp . AND there were 1960 TR7 off road BONNEVILLES .
Bonneville TR7 . Pre Unit
There were TR6 SC & SS also . east & west coast could & did vary spec. & designation . U.K. spec. usually more staid .
The Date will be cast in a circle in the timing cover houseing . ( and in the Rocker / valve housing on the head )
Date of CASTING so stamped maybe a few months later .
Theres a film of T 100s being built , in the 50s . They still ruled the world in the 60';s .
[MEDIA=youtube]L40MaCjqY5w[/MEDIA]
original goes trough to the dyno & shipping .