Locking sliding glass door latch

A quick learner from Los Angeles says:

I need to replace the lock to sliding glass door and am not sure which model to buy. It is a multi-point mortise latch with a keyed lock. The sliding door is for a detached office so requires a lock.

Please let me know if you are able to recommend a replacement.

Thank you,
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Lauren from SWISCO responded:

Hello, thank you for posting! 

Your mortise lock resembles our product code 82-239. Please review and compare the dimensions below for a good fit! 

Alternate image for 82-239
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