Hello Craig and Mod BB,

The second crank point was a reference to the elongated pulley on the crankshaft.
Clearly, now, I take it that this is not meant for the crank handle at all.
It's just a curious casting, but you are saying it may be non-standard...

Here is another member's machine (shedpest).
I guess this is what the arrangement should look like(?).

[Linked Image]

All very curious.
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JACK