Maker: Unknown

Year: 1675 c.+25

Year Range: -

Year Notes:

Manufacturing Location: England

Signature:

Signature Notes:

Inscriptions:

No stand present.

Collection: Louwman Collection of Historic Telescopes

Accession #: LC 36

Sources:

Louwman, P.J.K., and Zuidervaart, H.J., "A Certain Instrument to See Far: Four Centuries of Styling the Telescope Illustrated by a Selection of Treasures from the Louwman Collection of Historic Telescopes". Wassenaar, 2009. p.65. #40.

Louwman, P.J.K., and Zuidervaart, H.J., "A Certain Instrument for Seeing Far: Four Centuries of Styling the Telescope Illustrated by a Selection of Treasures from the Louwman Collection of Historic Telescopes". Wasscnaar, 2013. p. 74. #36.

Public Notes:

"English telescope (reverse tapered). Main tube covered with white parchment with a coloured pattern and (worn-out) gold tooling, resembling Turner (1966), no. 20. Six drawtubes made of white parchment. Length 46-125 cm, Ø 5.5 cm.

Restoration on both end pieces, made of lignum vitae (pock wood). Unsigned, but a telescope resembling this one, with the signature
‘Will Longland at the ship in Cornhill London’, is in the National Maritime Museum in Greenwich (NAV1587). Presumably last quarter of the seventeenth century.

William Longland (d. 1722) was a member of the spectacle maker’s guild since 1674. He had been an apprentice of Joseph Howe" (Louwman, and Zuidervaart, 2013).

Length (open): 1250

Length (closed): 460

F-ratio:

Exit pupil:

Object status:

Objective type: singlet

Optical style

Physical style

Functional style

Materials: lignum vitae, parchment, glass, gold tooling

Drawtube data:

Drawtube notes:

Objective Data

Eyepieces

Notes: