Bob from SWISCO responded:
September 24, 2023
Thanks for posting. Without seeing the original handle set, I am afraid it's difficult to say exactly what you need. Our 48-168 and 40-188 Mortise Lever Locks have 4-3/4" hole spacing, so it's possible this type of handle set might work for you, but I can't make any guarantees. Compare the dimensions below with your old hardware to see if you think this might work for your door. Alternate image for 40-188
Alternate view of 40-188
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