1992 Weathervane Vinyl frame window from Weathervane Window co in Kirkland, WA
Dave Sr. from SWISCO responded:
June 3, 2020
Hello,
I'm not familiar with your keeper but the cam handle looks like our 38-064. Take a look at the 38-108 and 38-123 keepers that we carry for your type of locking handle to see if you can adapt one of these to your window. Thank you!