Plastic cover for porch crank out windows.

A home owner from New Jersey says:
August 24, 2020
I have a set of porch crank out windows that are over 30 years old. Each set of windows has a plastic cover with the name "SPARROW" printed on them. All the covers are cracked and broken. They appear to cover access to the pulley or rope mechanism of the window. I'm looking to find replacements for these covers (12 in total). They are 6.5" L x 1" W.
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Bob from SWISCO responded:
August 27, 2020

Our 39-355 is the closest match, but it may prove to be smaller than yours. If so, a local hardware store may have another solution.
Awning Crank Operator Slot Cover
Awning Crank Operator Slot Cover
39-355
$1.22
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