Another example of a chair that can become a table, this one by flipping the seat backwards onto the floor. France, early 19th century. Metamorphic Furniture: The Original Small Space Solutions | Apartment Therapy
Antique George III Metamorphic Writing Table/Library Steps - The brass-edged top folds back to reveal treads and a fold-out section which together make library steps. Inlaid Mahogany writing table/library steps, c 1795.
rare Chippedale Library Steps at Harewood House, mahogany with ormolu-mounted rosewood and marquetry of various exotic woods .. 18th century English metamorphic table that converts to library steps/ladder