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Micrometer Glass Disc in Case, English?, 19th Century

Inventory Number 92680

Acknowledgement: © History of Science Museum, University of Oxford, inv.92680

Item type
Object
Primary inscriptions
"657'", "100 Inch about 1800"
Physical material
Glass
metal
Fishskin
velvet
Object type
Micrometer
Dimensions
Diameter: 30mm Height: 5mm Weight: 0.05kg
Inventory No
92680
Accession Number
1952-

Description

One inch glass disk with square net in brass ring, in flat fish skin case.

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