Maker: Unknown

Year: 1710 c.

Year Range: -

Year Notes:

Manufacturing Location:

Signature:

Signature Notes:

Inscriptions:

No stand present.

Collection: National Maritime Museum

Accession #: NAV1549

Sources:

Royal Museums Greenwich. "Non-achromatic telescope". http://collections.rmg.co.uk/collections/objects/43761.html [Accessed: June 2016].

Public Notes:

"This non-achromatic telescope has three draw tubes made of green vellum and a leather barrel with gold-tooled decoration. The other fittings are made of lignum vitae and brass, including sliding objective and eyepiece lens covers. Stop lines on the draw tubes (shown by rings of black dots) indicate the telescope's optimum working length" (Royal Museums Greenwich).

Length (open):

Length (closed): 235

F-ratio:

Exit pupil:

Object status:

Objective type: unconfirmed

Optical style

Physical style

Functional style

Materials: lignum vitae, vellum, glass, brass

Drawtube data:

Drawtube notes:

Diameter: 35 mm

Objective Data

Eyepieces

Notes: