Locking latches for awning-type Alcoa windows

A home owner from Duluth MN says:
We moved to this house 4 months ago so don't know its history other than built in 1957. House has awning windows in bedrooms & bathrooms (hinged at top, crank open at bottom). Don't think windows are original to house, we think they are replacement units installed in 1970's but timeframe is just a guess. Glass has "ALCOA 2092" etched in lower corner so we assume these are Alcoa windows. Each window has two locking latches, one on each side. Latch handles are plastic and several have broken off. Also there is a small internal plastic tab which holds latch handle in open position, many of these are also broken which makes it difficult to close & latch the windows because the latch falls down into lock position & blocks complete closure of window.
**If these can be identified & are available we'd like to order several.
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Emily from SWISCO responded:

Hi there!

Take a look at our 38-036 and compare our dimensions to yours to see if they match up for what you need. 

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