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Weights and original correspondence from the Castlereagh Collection for Havre de Grace

1800-1818
Weights from the Castlereagh Collection for Havre de Grace (France). Boxed set of 12 metric gramme weights and 6 flat grain weights.

Weights from the Castlereagh Collection for Havre de Grace

1800-1818
Original correspondence from the Castlereagh Collection for Havre de Grace (France). Boxed set of 12 metric gramme weights and 6 flat grain weights.

Original correspondence from the Castlereagh Collection for Havre de Grace

1800-1818
Model in brass, scale 1:12, of an adjustable-pitch screw propeller, Robert Griffiths patent, No. 92, A.D.1853 & No. 319, A.D.1858, Havre, France.

Model of adjustable-pitch screw propeller

1849-1853