Replacement Crank Handles

A contractor from Cincinnati says:
I need a few replacement casement handles, the owner tells me these were a brand called Posey windows local to the Cincinnati OH area now out of business, they are similar to Pella windows. There is a small slotted drive set screw and internal teeth to mate with the window itself

Text on crank handle:
U.S. PAT. 4,083,264
CAN. PAT. 1979
User submitted photos of a window operator handle.
Profile picture of Paul
Paul from SWISCO responded:
I would start by looking at our 39-114L. This has a 11/32" spline size. Does that match your own? The spline size is probably the most important feature, so you should definitely make sure that matches. We also have this same handle in a folding version; see our 39-205. They are both used on Truth operators.
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