The lovely decoration of this Roberval scale is strongly Art Nouveau in style. It was made between 1908 and 1915, as deduced from the postage rates which were current from 1897 to 1915 and the registered number 540718, marked under the base, which was taken out in 1908. brass was used for the scales and "A" frames, but the weights and the base were made from cast iron and plated with brass. Similar scales and Art Nouveau frames also mounted on a plain wood base.

Classic design made by many firms from 1840 to around 1940. Many variations in decorative style including, filigree brass bases, china bases, Wedgwood plaques set into the plates, enameled patterns, inlaid stone flowers, etc, etc. The plain style shown is the most common. Weights were commonly flat, round, stacking, and provident with a knob on the top one ( often missing ). Top two weights normally the same value, e.g. 1/4, 1/4 oz or 1/2, 1/2 oz. Weights over 2 oz were often lead cased in brass. " Bottle " weights or square knobbed weights were also used.