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Instruction Booklet for Marconi Kryha Cipher Machine, by Marconi Company, London, c. 1920

Inventory Number: 88541

Date: c. 1922

Maker Details: Signed by the Marconi Company.

Inscription: "...THE MARCONI CO., LTD.,..." printed on the first page. See Documents for other inscriptions.

Size: 255 x 195 mm

Materials: Paper

Other Given Number(s): Christie's 95.


Instruction booklet for Marconi Kryha Cipher Machine. Twelve pages with red cover. Previously associated and catalogued with Marconi Kryha Cipher Machine (Inv. Num. 46995).

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