Missing locking mechanism on slider.

Hello,

It looks like your handle set would use the 82-107 latch lever kit. Take a look at the specifications below. We also offer the 82-086 handle set if you'd prefer to replace the entire assembly.

Dimensions for 82-107

Dimensions for 82-086

Dimensions for 82-086

As for your mortise lock, take a look and compare the specifications of the 82-265 to your assembly, which is used with the 82-249 keeper. Thank you! 

Alternate image for 82-265

Alternate image for 82-249

If you'd like to replace the entire handle set, you would need the 82-086 that we mentioned. You would just need to confirm that the 3-15/16" hole spacing shown in the product image matches yours. This handle set is often used with the 82-265 mortise lock, so you should be good to go.