This is one of the earliest AD-dated coins: Special early dated coin! Pre 1500 AD. There are books on these pre 1500 AD-dated coins. Early ANNO DOMINI dated coin: 1411. Very early for an AD date! Aachen as a free city. +ANNO DOMINI: MILLESIMO CCCC: VND (Undecim or Eleven) The CCCC begins at 9:00 on the reverse See: http://www.medievalcoinage.com/earlydated/1370s.htm for the type with various dates. See CNG 87 (2011, May 11) lot 1365 for this date and type (PR $450 + fees). 26 mm. 1.95 grams. [$219 + $6 shipping the US, $9 elsewhere] For the rest of the coins on my site (ancient, including Byzantine, but not other medieval coins) see: http://augustuscoins.com/index.html