Jade/onyx signature blotter
Short-handled roller made of green jade, or onxy, and brass for rolling across blotting paper that has been placed over a signature. It was probably once part of a writing set. Originally on display as a mystery object (roller for screenprinting; smoothing hand-made paper; polish starched shirt collars; Chinese face massager) and identified by the senior photographer of Bonhams Auctioneers, Edinburgh.