Searching for 1970s encasemenys

A quick learner says:
Looking to replace encasements for nine crank windows
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Dave Sr. from SWISCO responded:

You have a very old Stanley awning window. It might be from back in the 1960's or even earlier. The only part that is still available is the 39-076 center gear. From what I know all other parts used on this window are no longer available. I am sorry to be the bearer of bad news.

39-076 : Center Gear Operator
Center Gear Operator
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