This is a typical 1 pounder HEAVY made by UMC for Driggs Ordnance which company made several types of naval guns. The case was made in 1892 and the projectile is not the original for this case. The projectile is a Mark 5 target load made by Scoville in 1912. The case could have been loaded with this later in life but likely just a stuffer(i.e. a projectile placed in an appropriate sized hole. Most collectors hate empty holes). All of this is very conveniently stamped into the metal.
Most 37mms which have fired cases will not be found with the original projectile.