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Early Coherer, Chelmsford, c. 1899

preview image for Early Coherer, Chelmsford, c. 1899
Inventory Number: 34674
Object Type:
Place Created: Chelmsford Essex United Kingdom (England) Europe
Accession Number: 2004-9/517
Brief Description: Early Coherer, relatively fragile, dated 1899. In small, narrow cylindrical glass tube with nickel-plated components, and copper connection wires exiting from each end. Structure appears to be two glass tubes tied together side by side, with upper glass tube having protruding glass tip. Label would indicate that filings are made of nickel and silver. Partially damaged with one end wire detached. Label probably handwritten by Marconi's first assistant, George S. Kemp (label initialled GK).
Primary Inscriptions: "30/11/99 / nic & sil / Busy 1Hour / MM Chelmsford / Dec 2 99 GK" handwritten on attached folded paper label.
Provenance: Presented by the Marconi Corporation.
Collection Group: Marconi Collection
Material(s): Glass
assorted metals.
Height Width Depth Diameter Unit
80 mm


Image with multimedia irn 35252Image with multimedia irn 35817Image with multimedia irn 36394

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