[unknown maker], 1750
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Basic Info

Maker:

Year: 1750

Year Range: -

Year Notes:

Manufacturing Location:

Signature:

Signature Notes:

Inscriptions:

No stand present.

Collection: National Museum of Ireland

Accession #: NMIDM:1994.17

Sources:

Acquisition source - Mr.Paul Egestorff, The Egestorff Collection, 1994. Irish National Inventory of Historic Scientific Instruments, Charles Mollan, (Samton Ltd, 1995) pg 145. Correspondence w/ museum curator.

Public Notes:

Telescope - refracting, unsigned. Non-achromatic. Early to mid 18th century. (I.N.I. No. 0595) Outer case wooden tube covered with green fish skin (shagreen); and 3-draws of green paste board; brass ferrules. Eye lens with sliding cover; eyepiece cells of lignum vitae.

Length (open):

Length (closed):

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Exit pupil:

Object status:

Optical Basics

Objective type: unknown reflector

Optical style

Physical style

Functional style

Materials: pasteboard, shagreen, lignum vitae, brass

Optical/Lab Data

Drawtube data:

Drawtube notes:

Objective Data

Eyepieces

Notes: