Wilson Screw Barrel Microscope
Item
Title
Wilson Screw Barrel Microscope
Description
The screw barrel microscope is made from brass and has an ivory handle which can be dissembled to fit into the original case. The microscope consists of a cylinder with an external screw thread. The microscope has a mounted objective lens with a condenser lens screwed into the other side to illuminate the specimen during observation. Coarse focusing is achieved by screwing the body tube along the screw thread which adjusts the distance between lenses. The microscope is also equipped with an extension attachment that is needed to mount the objectives when using the stage forceps. The instrument can be used as a simple or compound microscope, depending on how many objectives are used. The case has a red velvet interior that has compartments for the dissembled microscope and its accessories. The case is secured by two brass swing hooks; however, one is missing.
The microscope comes with the following accessories: 5 objectives (marked with dots from 2 to 5 and 4 retaining their caps), 1 stage forceps, forceps, 4 ivory sliders in a case, a partial wet slide and an ivory talc box containing mica discs for observation of opaque objects.
Condition
Cosmetically: The microscope is in good condition.
Optically: The lenses are clear and functional.
Mechanically: The microscope is functional.
Cosmetically: The microscope is in good condition.
Optically: The lenses are clear and functional.
Mechanically: The microscope is functional.
Subject
Microscopes
Creator
Unsigned
Source
Dean Reynolds' Microscope Collection Powerpoint http://golubcollection.berkeley.edu/18th/25.html
Publisher
UNC Charlotte
Date
Circa 1740
Contributor
Laura Burgess
Rights
Texts and images from this collection may not be used for any commercial purpose without prior permission from the Graduate Office, UNC Charlotte.
Relation
N/A
Format
Microscope: 2 1/4" closed, 3 1/2" extended
Language
N/A
Type
Three-dimensional object
Identifier
180421
Coverage
Unknown