The term escallop shell in furniture refers to a decorative motif or carving that resembles a scallop shell. It is often used as an ornamentation on furniture, such as chair backs, table aprons, or cabinet doors. The design features a concave and fluted shape, resembling the natural form of a scallop shell. This motif is commonly associated with Rococo or French Provincial style furniture, where it adds an elegant and decorative touch to the piece. Cockleshell.