Aristo 10075E dyers ready reckoning conversion rule for temperature

Made:
1970-1975 in Hamburg
Aristo 10075E dyers ready reckoning conversion rule for

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Aristo 10075E dyers ready reckoning conversion rule for
Science Museum Group
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Aristo 10075E dyers ready reckoning conversion rule for temperature, volume, weight, surface measure on the A side and density, steam pressure, water hardness and viscosity on the reverse B in English text

Details

Category:
Mathematics
Object Number:
1997-2293
Materials:
plastic and complete
Measurements:
overall: 2 x 220 x 52 mm
type:
ready reckoner
credit:
Mr Hans Dennert