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Record Details

Early Coherer No 217, c. 1899

preview image for Early Coherer No 217, c. 1899
Inventory Number: 55585
Object Type:
Accession Number: 2004-9/515
Brief Description: Early Coherer No 217, dated 1899. In small, narrow cylindrical glass tube with copper connection wires exiting from each end. With nickel-plated? components. Structure appears to be two glass rods tied together side by side, with upper glass rod having protruding vertical glass tip. Label would indicate that filings are made of nickel and silver.
Primary Inscriptions: "17.6.99 Gap Enlarged / nic & sil & other / M100 & V R 6000 / 592h 20.6.99 TB / VGI" handwritten on attached folded paper label.
Provenance: Presented by the Marconi Corporation.
Collection Group: Marconi Collection
Material(s): Glass
copper
nickel
silver
assorted metals.
Dimensions:
Height Width Depth Diameter Unit
120 60 mm

Narratives

Image with multimedia irn 35252Image with multimedia irn 39469Image with multimedia irn 39470

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