拍品 61
61
A rare Wheatstone lacquered brass photometer, signed on the drum C. Wheatstone Inv.., with winding handle in leather covered case - 2½in (6.4cm) wide

細節
A rare Wheatstone lacquered brass photometer, signed on the drum C. Wheatstone Inv.., with winding handle in leather covered case - 2½in (6.4cm) wide