Hi All,
I know this thread is as old as the hills but just an update from viewing the photos and that is the the engine and clutch assembly are not original.
This particular 20 inch model 45 was originally fitted with a 3 HP Kirby Lauson engine and a cast iron clutch half, this machine has a Briggs & Stratton power plant fitted along with a later issued diecast clutch half.
Cheers,
BB.