Tribrach

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

• Made of Aluminium/brass. • Size 100mm, 125 mm, 150 mm dia. • Complete in Case with Aluminium Telescopic/Rigid/Wooden Tripod. • Aluminium circle consist of a needle graduated to 30min (0.5) graduations. • Painted with water proof paints. • Carrying cases are made of Fibre with carrying straps. Least count 30'.

Description

Vernier Transit Theodolite German Pattern 10 Sec. Accuracy All Metal Body erect image, coated lens High Range Imported with Powder Coated Colured Deluxe Folding Telescopic Tripod in Cartying case complete with all standard accessories.

Description

We offer Brunton Compass (Geological Compass) which is available in a leather or wooden case. This compass differs from modern compasses, as it utilizes magnetic induction damping rather than fluid to dampen needle oscillation. It is widely used by geologists and surveyors to make accurate degree and angle.