Will do the second one first this is easy to ID. It is the Emperor Licinius I 308-324 AD, Obverse: IMP LIC LICINIVS PF AVG, Reverse: IOVI CONSERVATORI, Jupiter standing holding victory on globe with scepter, and eagle with wreath in beak. Thessalonica mint. Nice coin, the emperor looks like he's smiling.
#1, Late Roman coins can be a challenge to ID without legends. This coins appears to be of the Emperor Valentinian I 364-375 AD, Reverse is Victory advancing holding wreath and palm. Siscia mint.