label on door was SGD-R20-96X96 broken parts said made in New Zealand

A handy person from anchorage,AK says:
inside locking latch twisted off took handles and screws off cannot get center mechanism out. door 1.5 thick. Tenant wants to put an outside lock on the door
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Dave Sr. from SWISCO responded:

Thanks for posting. Please see our 82-081 keyed lock handle set, I think you'll find this is a good match for the handle set. As for the mortise lock, see our 82-238.

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