Octangonal Cross Staff

Description

We are supply and Export of Ranging Rod that made of steel conduct pipe of 25mm dia. Alternatively painted international orange & white.

Sizes Available

• Size 2 meter single • Size 3 meter single • Size 2 meter 2 fold • Size 3 meter 3 fold

Description

The Cross-Staff was used at sea from the beginning of the 16th century until the first half of the 18th century. It was used to measure the sun's altitude, especially at the meridian passage. With the knowledge of the sun's declination, the mariner could then obtain his latitude. The staff is original, with the inscription. The cross pieces are replicas. Different cross pieces were used depending on the altitude. A different scale is on each side of the staff.

Description

Consists of telescope eyesight and an adjustable tubular spirit level, which is connected to a semicircular protractor scale and vernier marked in both slope and degrees (90°). A magnifier glass assists in accurate reading the degree of inclination from vernier.

Description

Cylindrical brass sextant in leather case. The sextand has pull out eyepieces, silvered scale and vernier magnifier on a hinged arm. The brass cover screws onto the base as a handle. The leather case is embossed with a flower on both sides. The case has an attached cover which fastens with a strap. The inside of the case is lined with purple velvet like material. Maker's mark on sextand, embossed stamp on case.