THE CURRICLE TRIBUS
This elegant street carriage has just been patented by Mr. Harvey, of Westminster Bridge-road. As its name indicates, it is drawn by two horses, and will accommodate three persons. It may be made an open or close carriage, at pleasure; it is so light in draught, that even a slight horse will work well in it. The shafts are made to shift with ease to give place to a pole, when it becomes a curricle for a pair of horses. The body hangs low, particularly safe, and the coachman's seat is so placed as to give him command of the reins and enable him, at the same time to open and shut the door.
from The Illustrated London News, 1845