The Swivel Spindle, or "My Knob Just Came off in My Hand!" - Dengarden
Premier Lock Brass Mortise Entry Right Hand Lock Set with 2.5 in. Backset and 2 SC1 Keys MR01 - The Home Depot | Single cylinder deadbolt, Lock set, Mortise lock
Marks Lock 22AC Ornamental Iron Mortise Lock - ASK Locksmith, Inc.
Yale 50-1178-0001-048 1178L Swivel Spindle, Lever x Lever Mortise Locks, 1-3/4" Door
Marks Metro 91A/3-X Left Hand Apartment Entry Heavy Duty Mortise Lockset with Wide Face Plate 1-1/4"" X 8""" - Walmart.com