These are antique used, salvaged hardware.  These are set of three (3) matching cast iron cabinet latches.   They are not maker marked, and are sold without keepers.   These have an oval turn turn knob to operate a spring loaded slide or bolt.  They measures 2-1/8" x 1-5/8" (excluding spring loaded latch tip).  Hardware shows some age and use wear and needs some cleaning.    There are no bends, splits, breaks, repairs, or off odors.