The collection process for wool in England has remained the same for many centuries. Shepherds brought their fleeces to a local collection point, for example Chipping Camden for wool from the Cotswolds, where it would be graded, paid for, consolidated into bales, sold to wholesalers and shipped to the manufacturer. The existence of bales in ancient times is attested by the custom of the English Lord Chancellor to sit on the so-called Woolsack from which he presides over the House of Lords. This seat is therefore not in reality a "sack", in which the shepherds probably brought 20 or so fleeces, probably two per mule, being the equivalent of today's "sheet", but is rather a bale, compacted by the weight of human feet at the merchant's premises.