Circular instrument of black and grey painted metal with black plastic fittings, with perspex disc 4.9" (12.5cm) diameter at centre. Two prismatic eyepieces are attached to a jointed arm which is mounted on edge of instrument. Supplied with a black silk cover and electric lead and plug.
In grey painted wooden box 9.8 x 9.8 x8.25" (25 x 25 x21cm).