Window won't open/close

A contractor from Arlington, VA says:
August 17, 2020
I am renovating a house and discovered that this small window in the basement shower will not open/close because the hinge is separated from actual window. There are damaged black, plasic parts (I've circled the in red) that connect the hinge to the window. They are both cracked. The handle on the crank has the word "TRUTH" stamped on it...
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A contractor from Arlington, VA says:
August 17, 2020
I should add that our lead carpenter said it's an Anderberg Window.
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Bob from SWISCO responded:
August 20, 2020

See our 39-453 Awning Operator. Look over the dimensions and see if this matches what you need. For a new crank handle, see our 39-114L. 
Crank Handle, 11/32"
Crank Handle, 11/32"
39-114L
$4.42
Truth Pivot Shoe Roto Awning Operator, 5-1/2" Arms
Truth Pivot Shoe Roto Awning Operator, 5-1/2" Arms
39-453
$67.24
SWISCO Window Operator Crank Handles
SWISCO Window Operator Crank Handles
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