Replaces Papaiz Lock: Complete Mortise Lockset : MZ-35 
The Replacement for Papaiz lockset comes with a Single Cylinder, key on one side, lock w/ 2 keys. 
Will replace most Pado, Emtek, Emco, Juralco, and Wright brands.

Fits doors from 1 to 1-3/8 inches thick
Outside trim plate screw holes spaced: 6-9/16 inches
Lock faceplate screw holes spaced: 6-15/16 inches 
Faceplate dimensions: 13/16 inch x 7-11/16 inches
Available Finishes: Polished Brass (for other finishes, replace with 301021 - MZ-33 Lockset)

Includes: 
Brass-plated handles
Trim plates
323 Slimline lockcase
Single Cylinder (keyed with thumbturn)
2 keys
Installation hardware

Polished brass is the only finish available for the MZ35 handle set.
For Black, Satin Chrome or Brushed Chrome, replace with MZ33 handle set.

NOTE: If door is 1-1/2 inches thick you will need a longer spindle and longer screws. 

Keyed cylinder is NOT rekeyable.

Resources:
How to Install Papaiz Locks
How to Replace Mortise Locks.