Window locks and cranks

Question

These are original windows on a home in Minneapolis, MN. Built in 1979.
The only identifying marks are on the glass itself.
Saying "C-11-77M Cardinal sigma 101"

Any idea if you can get crank parts or window lock parts for this?

Tom · Accepted Answer

Hi there! We can definitely supply you with the hardware you need. Let's start with the locks, since I actually know what those are off the top of my head. Your exact parts are actually discontinued, but the newer 38-098 and 38-097 locks will work well as substitutes. The only catch is that you'll also need a new 38-079 keeper.

There could be a lot of possible replacements for the operator and I'm not sure where to start. We'll need to see a photo of it out of the window and by itself in order to recommend a match. Too much is obscured as long as it's installed. Let me know!