What type of handle / cover do I need

A quick learner from California says:
Hi there!

I hope this note finds you well.

I am looking to replace the handles / covers for my window operators. (Which were missing when I bought my house...) It looks like the window operators are from the "Truth" "Entry Gard" line. (There is a stamp on the operator arm, not sure if it is visible in the pic.)

Could you help me figure out what would fit on this? I prefer the look of metal (over painted) if possible. Many thanks!
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Bob from SWISCO responded:

See our 39-107 and 39-114L, or if you'd prefer a combo folding handle and cover, the 39-107FK. So long as the spline diameter is 11/32", either of these options should work for you. 

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