More information to follow.

Also stamped with size "M" and No. 1.9

With unit mounted in the bracket it stands 10 inches from the wall.

Numbered 1824 telescope in excellent condition, comes with wood case.

Comes with three eyepieces: a regular, a celestial lens and a 45 degree angle lens.

Dimensions: main tube 42 inches long x 3 inch diameter. 59 inches long fully extended.

Overall height is 63 1/2 inches, the tripod is 46 inches high.

An extremely rare and excellently preserved navigation instrument dated 1762, this backstaff, or Davis Quadrant, is attributed to maker Benjamin King of Newport, Rhode Island. It is impact stencil signed with his name, with an exceptional array of degree scales on each arc, including a Gunters Scale on the verso, quite rare and desirable on such a navigation instrument.

Dimensions: 25 5/8 inches long x 15 1/4 inches high x 5/8 inch deep.