My old friend John Kirchner from Condell park had a similar machine.
'Clubman Gold Star'
G.P. carby,no idle stop, 21" front wheel, insanely high first gear, quite a "note thrower" exhaust, complete with the 'goldie tweety bird' out the exhaust on closed throttle.
Absolute hopeless beast as a commuter, probably why he sold it! then bought a Harley.
Haven't seen him since.
cheers pancho