Design for a Town Chariot carriage and a Dress Chariot carriage

Pen and ink, watercolour and carriage oils on board, (blue, black, cream, silver), [design for a] Town Chariot carriage (with flap recealing an alternate design with or without top box) and a Dress Chariot carriage (with flap revealing an alternate design with hammer cloth) / Barker & Co., London, [ca1840], scale 3/4":1 (1:16) 26.5 x 42.5 cm.