House window handle

A landlord from Brookfield, IL says:
It says R.O.W. on the side. It's very old but maybe you have a part that would work. It's for the left window if you are in the house looking at the window and the window opens to the left. Thank you!
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Emily from SWISCO responded:

Hi there!

Unfortunately, we don't have anything exactly like this operator. You could check out either our 39-013 and 39-014 or 39-027E and 39-028E, in use with our 39-505 track, and see if any of these could work as a substitute. I can't guarantee that they will work, but it's the closest thing we have.

If you need just a handle, please see our 39-114L which fits an 11/32" spline.

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