The joys of finding coins in the rough, in person, un slabbed, not on the internet. I saw this today at a local coin show. This Titus as is very worn but is otherwise problem free and attractive. Trying to attribute it, I don’t see it in RIC. The Aeternitas issues should go with deified Vespasian issues cf RIC 379-381, while the obv should be cf RIC 61-82. Has anyone seen this combo before? Assuming it’s authentic, it would be a mule? David Atherton, are you around? O: IMP T CAES VESP AVG P M TR P COS VII (2nd I under head). Laur. head left. R: AETERNIT... Aeternitas stand right.
RIC 218 http://numismatics.org/ocre/id/ric.2_1(2).tit.218 the Göttingen example looks like a obverse die match: https://www.kenom.de/objekt/record_DE-MUS-062622_kenom_128510/1/