Each length of woollen cloth had at least two seals attached. One carried the mark of a merchant to identify the owner. Another carried the seal of the alnager, a city official responsible for quality control. This stamp reads 'S Vlnagii Pannorv in Bristollia', or the 'seal of alnage of cloths in Bristol' and dates to about 1500. Broadcloth, two yards or about 184 cm wide, was warm and waterproof. The standard length was an ell, two feet six inches or 114 cm. A 'cloth' was made and sold in standard lengths of 40 or 20 ells.