Gonichon, 1770 c.+10
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Photo

photo - whole telescope
Basic Info

Maker: Gonichon

Year: 1770 c.+10

Year Range: -

Year Notes:

Manufacturing Location: Paris, France?

Signature: Gonichon rue de la poste a Paris

Signature Notes:

Inscriptions:

No stand present.

Collection: Coll. Willach

Accession #: 13

Sources:

Project investigation

Public Notes:

Triplet in ivory, thus 1770s. Signed in eyepiece insert of last draw. 2 green draws-- very late for this kind of paper. Can see milled edge of triplet, French design.

Length (open):

Length (closed):

F-ratio:

Exit pupil:

Object status:

Optical Basics

Objective type: triplet

Optical style

Physical style

Functional style

Materials: paper, ivory, glass, brass, pasteboard

Optical/Lab Data

Drawtube data:

Drawtube notes:

Objective Data

Eyepieces

Notes: