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Californian stamp machine, King Edward Mine, Cornwall

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© Crown copyright.NMR
Reference Number: AA98/10590
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Caption: Californian stamps differed from Cornish stamps in that the heads were not raised by a cam, but by rotary lifters. This meant that the heads revolved, which allowed for even wear. Up to 80 blows a minute was possible, the noise from which must have been deafening.
Photographer: P Williams Date Taken: June 1998
Collection: NMR
Archive Holder: English Heritage NMR
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