The fotmal (Old English: fotmael, lit. "foot-measure"; Latin: fotmal), also known as the foot (pes), formel, fontinel, and fotmell, was an English unit of variable weight particularly used in measuring production, sales, and duties of lead.[1]
^Ruffhead, Owen, ed. (1763a), The Statutes at Large, vol. I: From Magna Charta to the End of the Reign of King Henry the Sixth. To which is prefixed, A Table of the Titles of all the Publick and Private Statutes during that Time, London: Mark Basket for the Crown, pp. 148–149. (in English) & (in Latin) & (in Norman)