Octangonal Cross Staff

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

Our expertise enables us to develop a broad range of measuring and survey equipment and instruments such as Line Rangers. Manufactured using high grade metal and alloys, these line rangers can be availed in standard as well as customized sizes and specifications. Used for various testing and measuring activities by our clients, our range can be availed at most descent prices.

Description

• 100 braced links. • 2 rings per link. • 0.10 wire. • Cast brass handles. • Adjustable calibration and tally tags at ± 10, 20, 30, 40 and centre on side rings. • Measuring chains with brass handles and arrows 20 m, 30 m, 40 m and 50m.

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.