Window Dyad Crank- looking for part

A professional from Telluride, CO says:

Hello I am in search of a window Dyad Crank made by Truth. I've attached a
photo for reference The parts connected do have serial numbers on them. The
white base of the crank is labeled @ 10595 dimensions are 5"X 2 1/2" X 3/4".
The arms are labeled 31876 its is a hinged metal bar. Length is 9 1/2" rough
since base does curve. Straight non-hinged arm is 10 1/2". Do you have
anything that is compatible?? Thanks!
User submitted a photo of a window operator.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
I believe the operator you are looking for is our 39-253L. You might also need to get a new slide, so see our 39-529. You should be able to use the same stud bracket handle. Let me know what you think!
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