Magnetic sundial Horizontal, magnetic sundial, silvered, diameter 3.75-inches, dial made in England, 1801-1900. Object Number: 1887-13/1 type: sundials Image © The Board of Trustees of the Science Museum
Brass case for magnetic sundial Brass case for horizontal magnetic sundial Object Number: 1887-13/2 type: case - container Image © The Board of Trustees of the Science Museum