The coinage from Lugdunum has a distinctive style and is fairly easily recognised. I hope to be able to illustrate how to identify this coinage with these pages.
  Production at the mint began with the first emission in October A.D. 276 and progressed through 9 emissions to August A.D. 282. The mint operated with four officina, which used the marks I, II, III and IIII for the first eight emissions and changing to using A, B, C and D for the ninth emission. The B, C and D officina marks are also found in retrograde form.
  RIC is inconsistent with the way in which the coinage of Lugdunum is addressed. For some issues there is a separate RIC Id for two coins e.g. MARS VICTOR, where the only difference is the emission (the coins have different bust styles) and yet there are other coins where there are different emissions contained within the same RIC Id.
  Some early busts resemble Florian / Tacitus. The bust styles in the early emissions can be identified largely by the small amount of cuirass that is visible. Later busts tend to show more cuirass on the chest and the busts tend to be longer. This may not immediately be clear as these are very subjective differences, some of the examples shown on these pages should help to clarify some of these issues.