This is a modern reproduction of a 1950/60's Cheney design, as such this is a drop in replacement for a missing or broken latch on a Watkins / WEM copicat (the mk1 mk2 mk3 mk4 etc ec )
Also used by loads of other manufactures on vintage portable radios, record cases, portable record players, briefcases etc etc
these are 48mm tall and 32.5mm wide once assembled