The sliding door in a home I recently moved into is missing the strike plate. Here are photos of the latch that's installed. I'm hoping there's enough information here to recommend a comparable plate.
Bob from SWISCO responded:
August 4, 2020
Looks like you have an 82-218 Mortise Lock. This lock uses a few different possibly keepers, including the 89-020 and 89-021. See if one of these might work for your door.