Casement window operator

A home owner from San Antonio, TX says:
October 22, 2017
No markings aside from a "4" on the the back of the crank. Came from a 1920s era house. Mounts directly to the casement window frame, not the wood sill. Thank you!
Window crank
A home owner from San Antonio, TX says:
October 22, 2017
Additional images.
Casement window operator
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
October 26, 2017
I believe you could have the 39-001 and 39-002 older style casement operators in your windows. Take a look and see if they match up to yours.
A home owner from San Antonio, TX says:
October 26, 2017
Looks like a match, much appreciated!
Window Crank Operator, 9"
Window Crank Operator, 9"
39-001
$17.45
Window Crank Operator, 9"
Window Crank Operator, 9"
39-002
$17.45
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