An azimuth circle of the Kelvin type with "arrow up" and " arrow down" type prism and lens tube mounted on a black-painted brass frame. A brass fitting is provided at the centre to house a shadow pin and a round bubble spirit level is fitted at the near end of the instrument. Two coloured glass shades on swivel mounts are provided. A removable disc, 4" (10.2cm) dia. is fitted below frame at centre. In fitted wooden box which containing two shadow pins.