Editing Troy weight (section)

===Mint masses===
Mint masses, also known as ''moneyers' masses'', were legalized by Act of Parliament dated 17 July 1649 entitled ''An Act touching the monies and coins of England''. A grain is 20 mites, a mite is 24 droits, a droit is 20 perits, a perit is 24 blanks.<ref name="Britain)1891">{{cite book|publisher=Philological Society (Great Britain)|title=A new English dictionary on historical principles: founded mainly on the materials collected by the Philological Society|url=https://books.google.com/books?id=k2xXAAAAYAAJ&pg=PA675|year=1891|via=Clarendon Press|page=675}}</ref><ref name="Miege">{{cite book|last=Miege|first= Guy|title=The Present State of Great Britain and Ireland|url=https://books.google.com/books?id=BDs2AAAAMAAJ&pg=PA307|year=1738|publisher=J. Brotherton, A. Bettesworth and C. Hitch, G. Strahan, W. Mears, R. Ware, E. Symon, and J. Clark|page=307}}</ref>