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Displaying 421 to 440 of 655 records

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Heading Date Maker Place Materials Inv Num
View Record Replica Righi Oscillator Late 20th Century Unknown Unknown Brass, ebonite?, plastic?, mahogany. 70590
View Record Replica Grasshopper Send-Receive Morse Key Late 20th Century Unknown Unknown Brass, plastic?, mahogany. 70649
View Record RCA Radiotron Cunningham Radio Tube Type 6B7 With Carton 20th Century RCA. New Jersey, USA Glass, plastic?, steel, assorted metals. 70668
View Record Spare Wires 20th Century Unknown Unknown Plastic, brass?, steel. 70800
View Record Marconi Radio Valve Type V24 Early 20th Century Marconi's Wireless Telegraph Co. Ltd. England Glass, steel, assorted metals. 70906
View Record Telephone Transformer Type 191A Early 20th Century Marconi International Marine Communication Co. Ltd. England Hardwood, ebonite, steel. 71080
View Record Marconi Watercolour c. 1906 Leslie Ward. England Watercolours, wood, glass, paper. 71104
View Record Morse Tape Inker c. 1900 Marconi's Wireless Telegraph Co. Ltd. England Brass, mahogany, paper. 71246
View Record Rotary Spark Discharger Early 20th Century Marconi's Wirelss Telegraph Co. Ltd. London Steel, brass, cast iron. 71249
View Record Radio Valve Type AR8 Mid 20th Century Unknown England Glass, plastic?, steel, assorted metals. 71310
View Record Small Morse Key Early 20th Century Unknown Unknown Steel, bakelite. 71452
View Record Marconi Five-Valve Receiver 1922 Marconi Scientific Instrument Co. Ltd. London Teak, ebonite?, bakelite?, copper. 71494
View Record RCA Radiotron Radio Tube Type 6D6 20th Century RCA. USA Plastic?, steel, glass, assorted metals. 71527
View Record Radio Valve Type VR112 Mid 20th Century Unknown England Glass, plastic?, steel, assorted metals. 71648
View Record Replica Memorial Plaque Of South WellFleet Station (USA) Late 20th Century Unknown USA Cast metal. 71856
View Record Large Company Seal Embosser Chamberlain & Hookham Ltd 20th Century Unknown Britain Steel, wood. 71971
View Record Empty Case Of Forward Spark 'B' Wavemeter No. 2001 c. 1918 War Department Signals Flying Corps. Britain Teak. 71985
View Record Early Coherer c. 1899 Unknown England Glass, copper, nickel, silver, assorted metals. 72143
View Record Call Sign 20th Century Unknown Unknown Mahogany, plastic, metal. 72238
View Record Bone Coherer Support Rod c. 1902 Unknown Unknown Ivory, assorted metal components. 72278

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