Marked “PATD AUG 10 66″. Pretty sure this is a Corbin lock even though it isn’t named. The item “Corbin Single Pocket Sliding Door Interior Mortise Lock Set Plain Brass Face” is in sale since Saturday, March 3, 2018. This item is in the category “Antiques\Architectural & Garden\Hardware\Locks, Latches & Keys”. The seller is “bluhousredeck” and is located in Sweet Grass, Montana. This item can be shipped worldwide.

• Color: Brass
• Maker: Corbin
• Material: Cast Iron & Brass