Nested cup weights, brass

Made:
1800-1818 in Rio de Janeiro
maker:
Williams, Thomas

Sets of brass nested cup weights without case for 2 Portugese Pound from the Castlereagh Collection for Rio Janeiro (Brazil).

On display

Science Museum: Mathematics: The Winton Gallery

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Details

Category:
Weighing & Measuring
Object Number:
1932-234/1
Materials:
brass, complete
Measurements:
1/16oz (x2) - Includes botton: .002 kg
1/8oz - Oitava Dionca: .004 kg
1/4oz - Quarto Dionca: .007 kg
1/2oz - Mua Onca: .014 kg
1oz - Hua Onca: .028 kg
2oz - Duas Oncas: .058 kg
4oz - Quarto Oncas: .119 kg
8oz - Oito Oncas: .231 kg
8oz - Oito Ohcas: .23 kg
1lb - Libra: .46 kg
2lb - Nested Cup Weights (Total): .92 kg
type:
portugese cup weight
credit:
Board of Trade (Castlereagh Collection)

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