Grafómetro de bisel grande con pínulas plegables. - Latón - circa 1850 original barnizado
N.º 21555875
Vendido
Puja final
€ 155
Hace 286 semanas
Termómetro - Réaumur and Celcius - Marfil
Thermometer with double scale: Réaumur and centigrade, mounted on walrus tusk and circular ivory base. Complete with original tube, in very good condition, ivory turning yellow from age. See images for own impression.
The Ráumur scale is named after René Antoine Ferchault de Réaumur, who first proposed a similar scale in 1730. In 1794 the French government chose the centigrade scale as part of the new decimal metric system.
Height: 18,5 cm, diameter: 3,8 cm (base).
The Certificate will be included with the shipping (see last image).
Shipping: only within the EU (registered and insured).
This item can not be shipped to any country outside the EU.
N.º 21555875
Vendido
Termómetro - Réaumur and Celcius - Marfil
Thermometer with double scale: Réaumur and centigrade, mounted on walrus tusk and circular ivory base. Complete with original tube, in very good condition, ivory turning yellow from age. See images for own impression.
The Ráumur scale is named after René Antoine Ferchault de Réaumur, who first proposed a similar scale in 1730. In 1794 the French government chose the centigrade scale as part of the new decimal metric system.
Height: 18,5 cm, diameter: 3,8 cm (base).
The Certificate will be included with the shipping (see last image).
Shipping: only within the EU (registered and insured).
This item can not be shipped to any country outside the EU.
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