Vintage Window Sash Vent Stop

A quick learner from Los Angeles, CA says:
This is a wedge that is a window block for a sliding glass window
It is positioned horizontally and a slide device works vertically
To stop the window fro opening
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Paul from SWISCO responded:

Unfortunately, we don't have your type of wedge to prevent sash to raise too high. We do offer a screw on type, the 26-434 open control device kit. Take a closer look and let us know if you believe these would work.

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