A set of brass balance scales, 19th century, by De Grave & Co., on a mahogany stand marked 'De Grave & Co Makers London Class B', 85cm high, together with a mahogany cased set of troy ounce weights, box marked `De Grave Short Fanner & Co Makers London', and a similar set, with 100, 200, 300 and 500 troy ounce weights (qty.)