project out window

A contractor from newburyport ma says:
Older window, I couldn't find marking or a name. I need replacement arms. Do these look one you have or are familiar with.
User submitted photos of window hardware.
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Paul from SWISCO responded:
Looks like you're looking for awning window hinges. We may be able to help, but before we start can you give me the length of the base arm? That is, the arm screwed into the wall.
A contractor from nbpt says:
the base arm is 14 1/2 inches and I think the other 2 arms are 7 5/8 on center and 3 5/8 on center.
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Casey from SWISCO responded:
Take a look at SWISCO product code 36-023HD, heavy duty four bar hinge.
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