Unknown, 1675 c.25
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Photo

photo - whole telescope
Basic Info

Maker: Unknown

Year: 1675 c.25

Year Range: -

Year Notes:

Manufacturing Location:

Signature:

Signature Notes:

Inscriptions:

No stand present.

Collection: Coll. Willach

Accession #: 26127

Sources:

Project investigation

Public Notes:

White bone with covers and horn box. Lenses are held in place with bone rings. From around the second half of 1600s. Telescope unscrews in the middle (reason is unclear).

Length (open): 140

Length (closed):

F-ratio:

Exit pupil:

Object status:

Optical Basics

Objective type: singlet

Optical style

Physical style

Functional style

Materials: bone, horn, glass

Optical/Lab Data

Drawtube data:

Drawtube notes:

Objective Data

Eyepieces

Notes: