Sliding Door Broken Handle - door probably at least 30 years old

A friend says:
Metal on the top of the handle broke, the silver lever turns to lock the door.
96 yr. old Aunt hates to replace door, hoping to get a new handle.
Any hope??
Couldn't find any ID of type of door it is.
Thumbnail of the uploaded file named Jeanie's Sliding Door Handle
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Bob from SWISCO responded:

See our 82-003 or our 82-055, depending on the hole spacing. See if one of these might match what you need. Also note that this kind of damage to a handle set is indicative that your sliding door rollers and track may need to be cleaned or even replaced. Be sure to take a look. 

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