Bowl: Black painted brass, filler plug at side, expansion chamber at base incorporated with tripod spigot. Inside of bowl painted white with a black wire lubber pointer projecting from side. Fitted with an azimuth circle having a "Schmalcalder" type prism with two dark shades and spirit level, and an open frame with thread and dark glass reflector (glass missing).
Card: Dia. 3.75" (9.5 cm) white painted mica, with black markings, graduated to 16 points and 360 deg. from South point with inverted graduations.
Needle: Unsighted
Pivot: Unsighted
O.A. Height 7.5" (19.0 cm)
In wooden box 7.0" x 7.0" x 6.25" (17.8 x 17.8 x 15.9 cm)