Unknown, 1800 c.+50
Louwman Collection of Historic Telescopes Arrow right Arrow left

photo - whole telescope
Basic Info

Maker: Unknown

Year: 1800 c.+50

Year Range: -

Year Notes:

Manufacturing Location: Japan


Signature Notes:


No stand present.

Collection: Louwman Collection of Historic Telescopes

Accession #: LC 260


Project investigation.

Cocquyt, Tiemen. "400 Years of Telescopes" booklet, Zeeuws Museum, 2008. Item 52.

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.190. #260.

Public Notes:

Cedar wood construction. Finished by "maki-e" technique of applying gold powder to layer of lacquer by a reed. Traditional plant motif also seen in Japanese textiles. Case 51 x 9 x 10 cm.

"Japanese telescope. Black lacquered main tube made of cedar wood, with three black lacquered drawtubes. Rich gold tooling. With protective caps and wooden casing. Length 47/124 cm, Ø 8 cm. Unsigned. First half of the nineteenth century" (Louwman and Zuidervaart, 2013).

Length (open): 1250

Length (closed):


Exit pupil:

Object status:

Optical Basics

Objective type: singlet

Optical style

Physical style

Functional style

Materials: wood, glass, horn, lacquer, brass, gold tooling

Optical/Lab Data

Drawtube data:

Drawtube notes:

Objective Data