SILVERSMITHS' work, after having been filed is generally rubbed, 1st with a lump of pumice-stone and water, 2ndly with a slip of water of Ayr stone and water, 3dly a revolving brush with rottenstone and oil, 4thly an old black worsted stocking with oil and rottenstone, and 5thly it is finished with the hand alone, the deep black lustre being given with rouge of great fineness. The corners and edges are often burnished with a steel burnisher, which is lubricated with soap and water if at all.
In this case and in all others of polishing with the naked hand, it is generally found that women succeed better than men, and that some few, from the peculiar texture and condition of the skin, greatly excel in the art of polishing. The skin should be soft and very slightly moist, as the polishing powder then attaches itself conveniently, and there is just sufficient adhesion between the hand and work to make the operation proceed rapidly. A dry hand becomes hard and horny, and is liable to scratch the work, and excess of moisture is also objectionable, as the hand is then too slippery. 2. - The Plated Reflectors for Light-houses are cleaned with rouge, which is dusted on from a muslin bag, and rubbed over them with a clean dry wash-leather.
A thin film of oxide will nevertheless occasionally form on the surface of the reflector, and this is removed with a piece of leather, with rouge moistened with spirits of wine, which dissolves the oxide, after which the dry rubber is applied as above.