jalousie window crank

A home owner from Stephenson, VA says:
pat no D-1982620
RD 1963 CAN
User submitted photos of a window operator.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
I believe you have an old Silverline awning operator with the "e" clip on the end. As a replacement, I would recommend our 39-025 operator. This uses a threaded sector and screw instead of the "e" clip. In your photo, you do not show the installation holes in the housing, but compare our dimensions with your sample to ensure that they match.
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