Double hung wood window needs latch

A home owner from North Attleboro, MA says:
January 12, 2020
When we moved into this old house, there was no latch on this window so we have no picture of the part we need. It is a double-hung window. The bottom sash of the top window is beveled down and inward at a 45 degree (I think) angle. so there is no "flat' horizontal surface to install a typical latch.

There are 2 pictures attached. A close-up, and one looking the length of the window, which shows the angling problem better.

Do you have any suitable latches? I don't see any markings for a brand name on the window Tank you
Thumbnail of the uploaded file named Window latch picture 1.jpg
Thumbnail of the uploaded file named window latch picture 2.jpg
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Tom from SWISCO responded:
January 14, 2020

I'm not sure. It's very difficult to recommend the right hardware without anything to use as a reference. Would you be able to give us the hole spacing for both the keeper and lock? Please make sure to measure from the center of each hole, not their edges. Please also tell me the distance between the center of the lock holes and the back edge of the sash.

Finally, would you happen to have an identical window in the house that may still have its hardware? That would be a huge help.
A home owner from North Attleboro, MA says:
January 14, 2020
We do not have any similar windows. The critical issue is the fact that the Top window bottom sash is beveled. We can worry about measurements next but is there such a thing as a clasp for such an arrangement ? Its the bevel that presents the problem
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Tom from SWISCO responded:
January 14, 2020

Sure, one lock that comes to mind is the 90-095. This is specifically designed for Andersen brand windows and has a keeper designed to sit at an angle. I've seen others, too, but they're way less common. I didn't want to say anything for sure without knowing what kind of size we're dealing with.
Andersen Lock & Keeper, 2"
Andersen Lock & Keeper, 2"
90-095
$20.42
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