quote mercuryman:
My guess is Champion Hydro drive 4.2
Yes – I agree, and someone wrote 2LH8 on it. Not sure where the 8 came from, but the hydro-drive 4.2 was a model 2LHD, made 1950-1952. On this model, the hydrostatic drive was not really needed to get to low trolling speeds as it was on the 8.4 HP 4LHD model, but it did give the motor a "neutral".
Just visually looking at the prop, it looks like it would also fit a 4LHD, 8.4 HP with Hydro-drive.
Dave