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Early Coherer, France, c. 1899

Inventory Number: 57633

57633-1t 57633-2t 17473-19433-34674-50538-53061-55585-57633-62930-72143-72278-80963-82611-87538-88920-98899-1t

Date: c. 1899

Maker Details: Unknown

Inscription: "14/7/99 / nic & sil / Busy 40 min / 115ft. / J66 R5000 / JRU / France" handwritten on attached folded paper label.

Size: 100 mm in overall length (excluding end wires)

Materials: Glass, copper, nickel, silver, assorted metals.

Other Given Number(s): Christie's 12.


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 rods tied together side by side, with longer lower glass tube, and with protruding glass tip on upper glass tube. Label would indicate that filings are made of nickel and silver.

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