Schlegel replacement lock body for multipoint/multi-bolt lock.
This item is Discontinued and limited to existing stock.
Lock body only, no rods, no extensions, as shown

Installation Screw holes: 8-3/16
Special handle spacing: 2-5/8 inch (68 mm)
Backset: 1.77 inch (45 mm).
Lock body measures 3 inches deep and 7-5/8 inches tall.

NOTE: 

some locks had a round connection on the slide bar and some were rectangular, they are NOT interchangeable.

The replacement has a round connection.

If you have the Rectangular one, this will not work