no markings I have found

A quick learner from texas says:
can you tell if this internal latch is part number 26-322 or 26-323, plus the thumb latch?

the window is in a house not easily available. If necessary I'll take the latch out and take better pictures
Thumbnail of the uploaded file named window latch.jpg
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Casey from SWISCO responded:

Hello,

You have a plug-in type of tilt latch that slides into a cutout in the side of the sash frame similar to our 26-243 and 26-244. Review the dimensions below to see how they compare to yours. Thanks for posting! 

Alternate view of 26-243
Alternate view of 26-243

Profile view of 26-243
Profile view of 26-243

Anatomy of a tilt window
Anatomy of a tilt window
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