The 'Tachypoly Plasiasme' ready reckoner, 1880-1884

Made:
1880-1884 in France

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Automatic calculator; Chambon's "Tachypoly plasiasme" length 9 5/8 inches

'Tachypoly Plasiasme' ready reckoner, 1880-1884. Invented by C L Chambon in 1880, the 'Tachypoly plasiasme' ready reckoner showed multiplication tables up to 100 times 100.

Details

Category:
Mathematics
Object Number:
1884-4
Materials:
metal (unknown), paper (fibre product), wood (unidentified)
Measurements:
overall (flat): 20 mm x 40 mm x 260 mm, 0.08 kg
type:
ready reckoner ready reckoners, ready reckoner
credit:
Mr C.L. Chambon
status:
Permanent collection

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