Maker: Cuff, John

Year: 1736

Year Range: -

Year Notes:

Manufacturing Location: London, England

Signature: John Cuff, Londini Fecit, 1736

Signature Notes:

Notes that the same length is not used for young and old. Signed on lens with date. Note that signature goes clockwise, rather than the usual counterclockwise. Part of signature intrudes into objective that is usable. Not significant on this kind of lens.

Inscriptions:

No stand present.

Collection: National Maritime Museum

Accession #: NAV1526

Sources:

Royal Museums Greenwich. "Hand-held telescope". http://collections.rmg.co.uk/collections/objects/43738.html. [Accessed: June 2016].

Public Notes:

Museum Description:
"This non-achromatic telescope has a rayskin-covered barrel and four draw tubes made of vellum. The other fittings are brass. Both the objective and eyepiece lenses had sliding lens covers, although the cover for the objective lens is now missing. Solid black lines around the draw tubes indicate the optimum working length of the telescope. The maker's name and date are engraved on the objective lens: 'John Cuff, Londini. Fecit.1736'. John Cuff (1708-92), a maker of spectacles and optical instruments, worked in Fleet Street" (Royal Museums Greenwich).

PROJECT NOTES 2016:
Tubes made of paste paper.
Eyepiece insert is made of wood, with brass fittings.
Missing inverting lens of 3 piece lens system.

Notes that the same length is not used for young and old
Signed on lens
With date
Note that signature goes clockwise, rather than the usual counterclockwise
Part of signature intrudes into objective that is usable
Not significant on this kind of lens

Provenance:

Caird Collection.

Length (open):

Length (closed): 304

F-ratio:

Exit pupil:

Object status:

Objective type: singlet

Optical style

Physical style pocket

Functional style

Materials: shagreen, brass, vellum, glass, paper, wood

Drawtube data:

Drawtube notes:

Objective Data

Eyepieces

Notes: