These measures were used for establishing standards and testing of Imperial Liquids and were used in the 19th & 20th centuriesused by commerce and retailing to establish standards.Set of seven standard imperial liquid measures,made of brass,in a wooden box, comprising 1/2 Gill, 1/2 Gallon, 1 Gill,1/2 Pint, 1 Pint & 1 Gill.Each piece stamped with measures. weights and measures, potter j d london united kingdom