It occured to me while editing my Lefima snare drum thread-----adding a bit more info. that having originated as a family owned business in 1861 and continueing in that vein today; Lefima ,may be the oldest existing drum mfg. ------not including the possibility of some specialized maker of some regional drum, somewhere. I would be talking about a company that makes bass drums and snare drums etc.
Does anyone know of any other?