Weights from the Castlereagh Collection for Boston (USA). Boxed set of 6 cylindrical brass weights for the Troy and Avoirdupois system in a leather bound lockable case. Castlereagh Collection weights 1800-1818
Set of 16 spherical nickel plated, brass Troy weights, 56 lbs to 1/2 dram, (avoirdupois) by L. Oertling verified by the Standards Department of the Board of Trade Set of 16 spherical nickel plated 1894
Set of brass cylindrical weights, nickel plated 500 oz to .001 oz. (Troy) verified by the Standards Department of the Board of Trade Set of brass cylindrical weights 1894