1837 Inventory, Ante Library or Breakfast Room, 'Two Bronze and Marble Ditto [Vases].
1852 Inventory, No. 65 Ante Library or Breakfast Room, 'Two Bronze and Marble Vases'.
1869 Inventory, Small Library, 'A lava tazza and cover supported by eagles of ormolu'.
1896 Inventory (2nd Marquess' Heirlooms), f 93 r Red Library, 'A ditto bowl and cover mounted closed ormolu supported by Eagles on circular base under glass shade - height 7 inches'.
M. Aldrich, 'The Marquess and the Decorator', Country Life, 7 December 1989, p. 163, fig. 4.