Different bracket from 39-097?

A home owner from Poughkeepsie, NY says:
My crank mechanism seems very similar to part 39-097 except the bracket that attaches to the window itself does not match dimensions in photo on your website. The base with gear mechanism and the arms all seem to be same dimensions as listed in on line photo.
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Tom from SWISCO responded:
Do you think you have our 39-175 instead? Check it out and let me know what you think.
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