Hi ddt1240, and welcome to the Forum,
The case was made by Bartholemew Need in Clerkenwell, London, and was hallmarked in the London assay office in 1792. (Although the "r" date letter also appears for 1752 and 1832, it can't be the former because of the duty mark, and it can't be the latter because the leopard has a crown which was removed in 1822). The hallmarks are quite clear, especially the King's head duty mark. Everything looks in good order on the verge movement, apart from signs of corrosion on the regulator square, as far as I can tell from these pictures. I can't decipher the maker's signature on the top plate, but this may well be a retailer rather than the actual maker.