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Osram Radio Valve Type CM8, by Osram Company, England, 20th Century

Inventory Number: 79293

79293-1t 79293-2t

Date: 20th Century

Maker Details: Signed by Osram.

Inscription: "G.E.C. LTD / TYPE C.M.8. / OSRAM / PHOTO CELL / MADE IN ENGLAND / 9662" printed on exterior surface of bulb.

Size: 125 mm in overall length (including top cap and base pins)

Materials: Glass, steel, bakelite?, assorted metals.

Other Given Number(s): Christie's 215.


Osram Photo Cell Radio Valve Type CM8, in vertical glass envelope, with polished black bakelite? base. With four steel base pins and single steel top cap.

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