The wool carder’s bicycle
(First half of the 20th century)
In the past, summer mattresses were filled with vegetal fibers while winter mattresses with wool. The latter had to be emptied periodically. The stuffing was passed through a carding machine to "spread it," making it soft and fluffy again. The mattress-maker, a figure now almost forgotten, moved about on a tricycle equipped with a case bearing the carding machine, which also contained a metal brush and small tools used to empty and refill the mattress.