I just picked up this interesting antoninianus of Otacilia Severa Obverse: MARCIA OTACIL SEVERA AVG / Diademed, Draped bust r. on crescent Reverse: PVDICITIA AVG / Pudicitia seated left, holding sceptre and drawing veil from face (sorry for poor quality photos - I've had to use the seller's pics) The PVDICITIA types are very common for Otacilia Severa, however my coin has an I in the exergue, which (as far as I can tell) is unpublished. I can't find any similar examples anywhere (acsearch, Wildwinds, RIC, OCRE etc.) Would this "I" indicate that my coin was minted from the 1st officina? I thought that Otacilia Severa's coins were only limited to the 4th Any ideas would be greatly appreciated! Thanks!