this seller has more fakes this week.
He is actually selling two more Martinian coins and a fake Constantine with SENATVS reverse.
The next two pictures below are unusual. The Jovian and Constantius II are paired with reverses never actually minted. Perhaps he just put the wrong pictures together.
The next picture is a Constantine II VOT X from Thessalonica. It does not look right, but perhaps it is just the lighting.
the last is a fake Constans, he had two of these listed also.