Shallow wooden box containing instrument, inscription in lid: "Presented by Mrs Franklin-Davidson, 1916 June 10, Inv = p77, Letter E2". Trade card in lid: "Made by W.F. Stanley, 13 Railway Approach, London Bridge, SE".
Measuring instrument in 2 main parts, which slide together at right angles. Measuring scales on side. Inscription on instrument: "Stanley, Great Turnstile, Holborn, London". Two small metal fixings, two small pieces of glass, one with measuring scales printed on one side.