Marks 9215 Series Ornamental Iron Door Mortise Lock set. Used primarily with steel security doors

Important Keyway Information:
1 inch thick door option comes with a Marks "A" Keyway (Kwikset KW1)
1-¾ inch thick door option comes with a Marks "C" Keyway (Schlage SC1)

Available Colors: Polished Brass, Brushed/Satin Chrome, Antique Brass or Oil-Rubbed Bronze

Door Thickness: 1" (standard) or 1-3/4" (special order, please allow 4-8 weeks)
Face Plate: 1 inch by 7-1/8 inch 
Blue Box measures 5-1/2 by 3-3/8 inches. 
Backset: 2-1/2 inches from faceplate to center of holes for lock or handles. 
Spindle: 5/16 inch (8mm) Square
Locks: Double Cylinder Mortise lock with 2 keys. 
Handles: Lever Handles inside and outside with trim plates. 
 

Handing: Left Hand Reverse (if key is below lever, handles are on the left when you stand outside the house)

HANDING INFO: The key can be installed ABOVE or BELOW  handle on OUTSWING security doors

Key Below Lever: 
Viewed From Outside, Hinges on Left, Handle on Right = Right Hand Reverse (RHR) --> see 301075
Viewed from Outside, Hinges on Right, Handle on Left = Left Hand Reverse (LHR) 

Key Above Lever:
Viewed From Outside, Hinges on Right, Handle on Left = Right Hand Reverse (RHR) --> see 301075
Viewed from Outside, Hinges on Left, Handle on Right = Left Hand Reverse (LHR)


When the lock is inverted it changes the locking function. 

Locks are reversible, but better to get what you need. 

Resources:
How to change a Marks lockset from right hand reverse to left hand reverse (and vice versa

For the same lock with knobs instead of levers, see 301074 - Marks Series 22 Unilock Entry Lockset with Knobs