Late 18th Century German Cartridge Box and Belt

The leather of the cartridge box and the belt is a bit dry and stiff, but the box is complete and intact. The box is approximately 13 inches wide by 4 inches high by 2-3/8 inches deep. The interior has an inner leather pouch as well as tin inserts, consisting of a square compartment as well as multiple tin tubes to hold the cartridges. The belt exhibits a sleeve to hold a vent pick. Both the underside of the flap and the inner belt show a series of Roman numerals and numbers. The face of the flap has 2 small holes – maybe from a box plate.