pella mortise handle set

A home owner from Flagstaff, AZ says:
We have a '98 Pella door with the holes drilled, but no hardware installed. The mortise hole is 9" tall and 3" deep, and the backset is 1 7/8". The distance between the two bores is 3.5". Any thoughts on what hardware might fit in here?
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Tom from SWISCO responded:
Thank you for posting. Can you first tell me if this is a storm door or a glass patio sliding door? That will help us determine a possible replacement. Thanks!
A home owner from Flagstaff,AZ says:
This is a storm door (with a glass insert) 1 3/4" thick. I can post a picture if that is helpful.
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Tom from SWISCO responded:
Yes, a picture would be very helpful! In the meantime, look at our 40-191 and see if this is a possible match.
A home owner from Flagstaff, AZ says:
Here's a picture of the holes in the door.

The 40-191 looks like it has a smaller mortise than the cutout.
User submitted a photo of patio door hardware.
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Dave Sr. from SWISCO responded:
Thank you. It's hard to tell what you may have without having the original lock on hand. Do you still have it laying around? I also do not see any screw holes for the mortise lock face. How does it install in the door?

Do you see any markings or stamps anywhere on the storm door itself? Any serial numbers or Series name would help us get to the bottom of this.
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