binocular inclined tube G for Wild M20
Date: circa 1960
Inventory Number: 1997-1-2206
Classification: Microscope
Subject:
Maker: Wild Heerbrugg Ltd. (1921 - 1989)
Supplier: Wild Heerbrugg Instruments Inc. (founded circa 1955)
Cultural Region:
Place of Origin:
Dimensions:
10 x 13.5 x 10 cm (3 15/16 x 5 5/16 x 3 15/16 in.)
Material:
Description:
Binocular inclined eyepiece tube, type G, magnification factor 1, for the Wild M20 research compound microscope. The left-hand eyepiece is adjustable. Both eyepiece tubes are covered with cardboard dust caps.
This part is presently on the stand of the Wild M20, but it can be swapped for the monocular tubes [1997-1-2062 and 1997-1-2063] or the photo tube [1997-1-2064].
This part is presently on the stand of the Wild M20, but it can be swapped for the monocular tubes [1997-1-2062 and 1997-1-2063] or the photo tube [1997-1-2064].
In Collection(s)
SignedOn shoulder blade: WILD / HEERBRUGG / SWITZERLAND
Inscribedbeneath maker's mark: 19545
Historical AttributesOn September 2, 1960, David P. Wheatland ordered a Wild research microscope, model M20 KGS along with a comprehensive assortment of accessories and nearly all the attachments offered. He told the Wild vendor that:
"It is intended to use all thse for comparison, demonstration, and some for investigation. Eventually perhaps other basic instruments may be ordered and the accessories distributed among them. We are anxious therefore to have the list as complete as possible to make all the tests and optical experiments."
DPW also ordered a complete set of brochures for the library.
The initial cost of the purchase was $6000.
"It is intended to use all thse for comparison, demonstration, and some for investigation. Eventually perhaps other basic instruments may be ordered and the accessories distributed among them. We are anxious therefore to have the list as complete as possible to make all the tests and optical experiments."
DPW also ordered a complete set of brochures for the library.
The initial cost of the purchase was $6000.
Curatorial RemarksThe original invoice for the Wild M20 compound microscope (in file) contains 152 items. Most accessories are catalogued under CHSI inventory numbers running from 1997-1-2062 to 1997-1-2223, and are stored separately. The microscope stand is 1997-1-0722 and the case is 1997-1-0723. All items are linked together in the Object Package "Wild M20."
The binocular inclined draw tube is listed in the manual as Part Number 2610, but it was not listed separately on the invoice since it was included in the basic configuration (Part Number 2503, Inv# 1997-1-0722). A separate Inventory number was created since this part has its own serial number.
The binocular inclined draw tube is listed in the manual as Part Number 2610, but it was not listed separately on the invoice since it was included in the basic configuration (Part Number 2503, Inv# 1997-1-0722). A separate Inventory number was created since this part has its own serial number.
Primary SourcesWild Heerbrugg, General Purpose and Research Microscope, WILD M20, pamphlet Mi 604 e (Heerbrugg, Switzerland, 1956), 18-19.