Hi Geoff, given that info is pretty thin on the ground regarding the Scott Bonnar rotaries, it is (as in all Scotties) impossible to establish an exact date of manufacture, we can make some assumptions with your machine.

Your model number falls after the Model 45 cylinder mower, first introduced late 1967/early 1968; but cylinder mowers might not have followed the same time-line as the rotaries.....the fact that your machine is the same early SB colour, early logo, brass ID tag...original SB Model 201 engine...I would hazard a guess at 1969 as an approximate year of manufacture. The later Model 48's had the Kirby-Tecumseh KAV 74, 2 Stroke engine fitted in 1974/75. wink

Regarding the Pope, I am sorry, I cannot find anything on this model....Maybe one of our members can help.
cheers2

Please do not PM me asking for support. Please post your questions in the appropriate forums, as the replies it may receive may help all members, not just the individual member.
Kindest Regards, Darryl grin