|This is a solid brass sextant. An adjustable viewing scope is used to take different images. There are 6 different coloured glass filters, which are used to adjust the intensity of the light from the sun. For large adjustments pressing the clip moves arm and the micrometer drum is used for fine adjustments. It comes with a wooden box with fittings inside that hold the instrument on position. A fine wooden handle for a comfortable grip can be found under the sextant. The arch of the scale measures 22 cm and it weighs 4.5 kg when packed for shipping.