1950s crank arm assembly

A home owner from Tucson, Arizona says:
I am looking for a crank arm assembly for a 1950s window.
The window frame is 19 1/4 inches wide, the crank arm is 8 5/16 inches on its longest edge. The crank would be on the left side.

I also need the locking mechanism

Thank-you
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Tom from SWISCO responded:

I think we can help with this hardware. For the operators, look at our 39-001 and 39-002. I think these will work well for your window.

I'm less certain about the lock. We have a couple that are similar, but it will depend on your dimensions. See our 38-001, 38-005, and 38-078.

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