Window crank

A home owner from Ferndale, Ca says:
I have a hexagon window post and need two replacement handles. I have attached pictures if I can figure out how to attach. Not sure of the brand - looks like two m's or w's in the logo.
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Casey from SWISCO responded:

Hello,

Your operator looks like a match to the 39-091 Roto assembly, which uses the 39-224 folding handle. Thanks for posting! 

A home owner from Ferndale, Ca says:
Thanks so much. Once again you were very helpful in getting me a difficult to find part!
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