Maker: Unknown

Year: 1675 c.25

Year Range: -

Year Notes:

Manufacturing Location: France

Signature:

Signature Notes:

Inscriptions:

No stand present.

Collection: Louwman Collection of Historic Telescopes

Accession #: LC 55

Sources:

Cocquyt, Tiemen. "400 Years of Telescopes" booklet, Zeeuws Museum, 2008. Item 7;

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.99. #96.

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". Wassenaar, 2013. p.82. #55.

Public Notes:

Main tube covered in black leather with gold tooling. Seven pasteboard drawtubes. End pieces and protective caps made of a tropical wood. The protective caps have a very smooth screw-thread. Second half of the seventeenth century (Louwman and Zuidervaart, 2013).

Although this unsigned, impressive telescope has only a rather recent French provenance, analysis of the gold tooled rings confirm it indeed has a French origin. Furthermore some of the motifs in these gold tooled rings (seen in the illustrations) are identical to decorations found on the bindings of French books from the same period (Louwman and Zuidervaart, 2013).

Eyepiece tube about 2 feet long, each tube about 3 feet long. Objective is a replacement. Purple paper on tubes.

Length (open): 8000

Length (closed):

F-ratio:

Exit pupil:

Object status:

Objective type: singlet

Optical style astronomical

Physical style

Functional style

Materials: leather, paper, pasteboard, wood, glass, gold tooling

Drawtube data:

Drawtube notes:

Objective Data

Eyepieces

Notes: