Unknown, 1650 c.25
Louwman Collection of Historic Telescopes Arrow right Arrow left
Photo

photo - whole telescope
Basic Info

Maker: Unknown

Year: 1650 c.25

Year Range: -

Year Notes:

Manufacturing Location: Italy

Signature:

Signature Notes:

Inscriptions:

No stand present.

Collection: Louwman Collection of Historic Telescopes

Accession #: LC 19

Sources:

Project investigation.

Cocquyt, Tiemen. "400 Years of Telescopes" booklet, Zeeuws Museum, 2008. Item 3.

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. 61.

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. 37. #19

Bolt, M. and Korey, M. "The world's oldest telescopes." THE ORIGINS OF THE TELESCOPE. Eds. Albert Van Helden, Sven Dupré, Rob van Gent, and Huib Zuidervaart. Amsterdam: Knaw Press. 2010. p. 242.

Public Notes:

"Italian telescope with tubes made of pasteboard. Main tube covered
with gold-tooled brown leather. Three drawtubes covered with marbled
paper. End pieces and support rings made of ivory. Length 20-48 cm,
Ø 3 cm. Presumably about 1675.

The gold embossing of this telescope is characteristic of Italian telescopes. A similar instrument is in the collection of the Luxottica Museum in Agordo in Northern Italy (as cited in Louwman and Zuidervaart, 2009: Del Vecchio (1955) 52-53). The turned ivory end pieces of this telescope have a shape identical to those of the telescopes depicted on the shrine containing Galileo’s famous objective lens with which he observed the heavens in the years 1609-1610. This frame was made in 1677 by Vittorio Crosten (presently in the Museo Galileo in Florence)" (Louwman and Zuidervaart, 2013).

Length (open): 490

Length (closed): 205

F-ratio:

Exit pupil:

Object status:

Optical Basics

Objective type: singlet

Optical style

Physical style spyglass

Functional style

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

Optical/Lab Data

Drawtube data:

Drawtube notes:

Objective Data

Eyepieces

Notes: