Vintage Pocket Door Mortise Lock Keyed #2041-13
Came off the same door at our finger pulls item #2038-13. This has short, removable key which operates this unusually shaped lock bolt. Original ring or pin is missing. See pics.
Measures: 7.75" tall x 1 1/8th" wide face plate with a 4" deep x 5.5" tall x .5" thick mortise housing