Window Crank Operator

A home owner from 15001 says:
Hi, I need at least two of these cranks. My measurements might not be exact, since I don't see as well as I used too. We replaced eleven of them so far, but of course then one of the last two original ones died. :( I used to get these from HR Hardware, but they apparently went out of business. Any help you could give me identifying these would be most helpful. (Last time I had to send HR Hardware a broken one so they could compare)
Thumbnail of the uploaded file named Window crank pics wrhardware.PNG
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Thumbnail of the uploaded file named Window crank wrhardware.JPG
Thumbnail of the uploaded file named photo 1.JPG
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Tom from SWISCO responded:

It's tough to make out what you had from these photos but I am instantly reminded of our 39-075 . I think this may be what you need but review our specs to confirm.

Alternate view of 39-075
A home owner from 15001 says:
That is it, but I need the handle and the lower screw L going to the left hand side. That is a LENAHAN WINDOW CRANK 39-074 , correct??
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Tom from SWISCO responded:

Correct, the opposite-handed version of the 39-075 is the 39-074 . Let me know if you have any further questions. 

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