Staircase Model (France), mid/late 19th century; carved, joined, turned, bent, planed oak; HxWxD: 20.5″x27.9375″x17.3125″ [Gift of Eugene V. and Clare E. Thaw; courtesy Cooper Hewitt Museum]

Curved Staircase Model In The French Style, ca. 1850; carved, planed, turned, veneered walnut; HxWxD: 11.8125″x11″x17.0625″ [Gift of Eugene V. and Clare E. Thaw; courtesy Cooper Hewitt Museum]

Staircase Model, mid/late 19th century; mahogany, oak; HxWxD: 36.125″x23.5″x18.5″ [Gift of Eugene V. and Clare E. Thaw; courtesy Cooper Hewitt Museum]

Staircase Model (France), late 19th century; planed, joined, veneered cherry, walnut; HxWxD: 12.1875″x5.625″x6.75″ [Gift of Eugene V. and Clare E. Thaw; courtesy Cooper Hewitt Museum]

Staircase Model (France), late 18th century; joined, planed, bent, carved pear, wrought brass wire, turned bone; HxWxD: 29.5″x26.5″x26.375″ [Gift of Eugene V. and Clare E. Thaw; courtesy Cooper Hewitt Museum]

Staircase Model Double-revolution Stairway Model, 1850–1900; Made by R. B.; cherry; HxWxD: 19.125″x13.1875 [Gift of Eugene V. and Clare E. Thaw; courtesy Cooper Hewitt Museum]