Casement window operator ass'y for building erected in 1951

A contractor from Kansas City, MO says:

This building has a total of 51 commercial casement windows of which approx. a half dozen units have broken window operands, either left- or right-handed (t.b.d.). We are attempting to locate a source and approximate pricing to bring replacements to Kansas City, Mo.

If you have a compatible item in stock and can provide a price estimate including shipping charges, we will clarify the exact number of L's and R's needed and move forward to place a firm order. 

The building has a total of 51 sets of casement windows, and around a half-dozen have one or both broken cranks. Thank you, Gary 

Thumbnail of the uploaded file named Photo (A) Casement Operator Ass'y (circa 1951).jpg
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Tom from SWISCO responded:

Hi Gary,

Unfortunately, we haven't been able to find anything at all similar to your old style operator. The only thing we can feasibly recommend is our 39-044 and 39-045, which are more modern operators with a similar style to yours. I'm just not sure if the arms will be long enough. There's also a good chance you'll need to alter the sill in some way to match the new base. This would likely involve drilling new holes and maybe even reshaping the cutout where the operator goes.

You may also need a new track. See our 39-504 or 39-512. Sorry, we couldn't offer a more concrete option but hopefully this can be adapted to work for you.

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