Branch mint been located in Philadelphia (P or no letter), since 1793. Its current facility, Philadelphia's fourth, opened in 1969. U.S. branch mints have been located at: The Royal Mint of the United Kingdom is located at Llantrisant, Wales. It is currently the only facility of the Royal Mint but has had branch mints in the past, located at: The Monnaie de Paris – the French Mint – is a state-owned industrial and commercial company (EPIC). The current French mint facility is in Paris. There have been numerous French mints in modern times, i.e. since the French Revolution. These mints include cities
Royal Mint modern production methods, it is unlikely that coins would not conform, although this has been a problem in the past as it would have been tempting for the Master of the Mint to steal precious metals. The term "Pyx" refers to the boxwood chest (in Greek, πυξίς, "pyxis") in which coins were placed for presentation to the jury. There is also a Pyx Chapel (or Pyx Chamber) in Westminster Abbey, which was once used for secure storage of the Pyx and related articles. Coins to be tested are drawn from the regular production of The Royal Mint. The Deputy Master