Pen and ink, watercolour and carriage oils on board

Pen and ink, watercolour and carriage oils on board, (brown, black, light blue), [design for a] Dress Chariot carriage (with flap revealing an alternate design with hammer cloth) and designs for a Post Chariot carriage (with flap revealing an alternate design with and without top boxes and rumble seat to rear) / [Barker & Co., London], 1823, scale 3/4":1 (1:16) 22.4 x 35 cm.