Window Operator Replacement

A home owner from 21093 says:
Hi,
I'm trying to confirm if my awning window crank operators are from Swisco or not, only marking/stamp I can find is Made in the USA SD (which you can see in first picture). I'm trying to get a replacement. If you need any different/better pictures, just let me know. They are at least 15 years old, probably even 20.
Thanks
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Bob from SWISCO responded:

Hello there. Start by looking at our 39-025 Awning Operator. This looks to have a similar configuration, and yours looks like an older design of this type. But review the diagrams below and let me know if this seems right for you, or if anything differs.

Dimensions for 39-025
Dimensions for 39-025
View of the offset of 39-025
View of the offset of 39-025

How to install the handle on the 39-001 & 39-002 style crank operator
How to install the handle on the 39-001 & 39-002 style crank operator
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How to Replace an Awning Window Operator [1080p]
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