"the old days of post-chaise travelling"
A 1793 drawing showing a man riding postilion
were lightweight horse-drawn carriages, commonly used in the 18th and early 19th centuries. Seating two or four people, these conveyances were enclosed. When there was no coachman, the driver would ride postilion
, mounted on one of the lead horses to guide the vehicle. Postilion riders were sometimes known as "post-boys".