Design for a Dress Chariot carriage

Pen and ink, watercolour and carriage oils on board, (dark green, black, yellow), [design for a] Dress Chariot carriage or a Dormeuse Chariot carriage with and without a rumble seat to rear for Lord de Clifford / Wm Legg Junr], [Barker & Co., London], [ca1830], scale 3/4":1' (1:16) 22.6 x 34.1 cm (flap absent).