Here is an article that gives a detailed overview of these "phases" and the reasons why things have been arranged so. I am not sure of the copyright status of this, and I hope I am not treading on any toes by linking this: http://romanpaulus.x10host.com/Antoninus/07 - Diva Faustina I - Undated 140-161 (med_res).pdf Here is a recent Roman Collector CT post addressing this: https://www.cointalk.com/threads/with-a-veil-and-a-stephane.361590/#post-4564869 Most of the "phases" are represented by a multitude of types and legends. But of all the "phases" one of them, Phase 4, has but one type - Ceres holding two torches. The theory is this celebrates the birth of Annia Faustina to Faustina II and Marcus Aurelius. So in a way, this could be considered a Faustina II issue as well. Wikipedia gives a brief account of Annia Galeria Aurelia Faustina's life, although the main article gives a 151 A.D. birthdate whereas the Faustina II article says 147 A.D. (which agrees with Beckmann): https://en.wikipedia.org/wiki/Annia_Galeria_Aurelia_Faustina Recently I got one of these Phase 4 issues, an as with an unfortunate green pit, so now I have all five phases represented. These came only in gold and AE, not silver, apparently. If I've botched this attribution, please let me know! Faustina I Æ As 4th Phase: Birth of Annia Faustina to Faustina II and Marcus Aurelius (c. 147 A.D.) Rome Mint [DI]VA FAVSTINA, draped bust right / AVGVSTA S C, Ceres standing left with short, flaming torches in both hands. RIC 1174 (as). (10.56 grams / 24 mm) Share your Phase 4s or whatever Faustina I's or II's you want.