Sack-Back Gown (robe ?la fran鏰ise) Over frock with skirt or robe ?la fran鏰ise; Frock of cream colored silk; consisting of an over frock (a) and a skirt (b) decorated with wrinkled strips ditto silk finished with narrow bullion and light blue silk loops.; anonymous; Netherlands (possibly); c. 1760 - c. 1765; geheel; voering; passement; l 188.0 cm x w 320.0 cm l 98.0 cm x w 312.0 cm l 37.0 cm