The G2 carby was a short-lived model, and Victa's first governed 2-stroke carby. Very rare these days.
They, and the G3 type, were never marked with their type number that I've seen.
Yours is definitely a G3; the plastic air vane and associated bits are definitive.
Wasn't possible to retrofit these bits to a G2 carby, which had a metal air vane, and didn't incorporate the engine cutout switch. Mowers with the G2 fitted had the cutout switch in the throttle control, and a long wire that ran to it, routed in parallel with the throttle cable.
