Maker: Unknown

Year: 1750 c.+25

Year Range: -

Year Notes:

Manufacturing Location: Italy

Signature:

Signature Notes:

Inscriptions:

No stand present.

Collection: Louwman Collection of Historic Telescopes

Accession #: LC 78

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.91. #83.

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.95. #78.

Public Notes:

"Main tube covered with green coloured sharkskin. Three green coloured drawtubes. Ferrules made of horn. Endpieces made of ivory. Length 29-81 cm, Ø 3.5 cm. Unsigned. Third quarter of the eighteenth century" (Louwman and Zuidervaart, 2012).

Length (open): 810

Length (closed): 290

F-ratio:

Exit pupil:

Object status:

Objective type: singlet

Optical style

Physical style

Functional style

Materials: horn, ivory, sharkskin

Drawtube data:

Drawtube notes:

Objective Data

Eyepieces

Notes: