SIB0213 2.5” Solid Stallone Brass Brunton Pocket Transit Compass

2.5” Solid Brass Brunton Pocket Transit STALLONE-INDIA Compass: This is the regular solid
brass brunton pocket transit compass. It has combined features of surveyor’s compass, prismatic compass, clinometers,
spirit level & plumb. This compass is the famous Brunton Compass designed by Colorado mining engineer D. W.
Brunton. In 1894 Brunton received a patent for his new compass and within a few years it became widely used throughout
the world. Since Brunton’s patent has expired, other high-quality and low-cost pocket transits have been introduced to
the market. Still, the Brunton Compass remains many geologists’ most trusted tool, combining the principles of the
surveyor’s compass, prismatic compass, clinometers, hand level, and plumb. It unfolds to produce two sights with
peepholes. You can either sight through a clear window in the lid or lay the lid fully open and use the second hinged peep
sight. The inside cover has a mirror with a vertical line inscribed. The perimeter of the face has a compass rose and the
interior of the compass rose has two spirit levels and a movable scale for use as a pocket transit. There is a slotted screw
on the outside of the case that turns a gear that rotates the entire compass rose to adjust your local magnetic declination
angle (the difference between true north and magnetic north). Closing the compass lid moves a needle lift mechanism
that protects the jewel bearing when transporting the compass. Turning the compass on its side and adjusting the spirit
level allows for an altitude angle measurement (while viewing the spirit level using the mirror hinged at 45-degrees). This
model is accurate to one degree in azimuth, and has a 10 arc minute resolution for vertical angles.
Size: 64 mm (Dia.)
Weight: 0.350 kg.
PACKAGING SIZE DETAIL
10x10x6 centimeter, single pcs cardboard box packaging