19-Band Microscope Test Plate and Case, by F.A. Nobert, Germany, 1860s | |
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Inventory Number: | 14571 |
Object Type: | |
Persons: | Friedrich Adolph Nobert |
Date Created: | |
Brief Description: | Copper alloy plate of 3-layer sandwich construction screwed together, with central circular glass. In later "INTAL" brand cardboard box. This is the issue of test plate that Woodward resolved in 1869. |
Primary Inscriptions: | Engraved (or stamped?) "225'" and very lightly scratched "19". |
Collection Group: | |
Material(s): |
Copper alloy Glass Cardboard Cotton |
Narratives | |
Related SitesGeek is Good website |
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