Pit in SW corner of Heliaia Peristyle (mint).
The four Athenian imperial coins (Κ-1641 - Κ-1644) belong to the Athenian Imperial Group III, a series that can be very closely dated to the middle of the ... Mid 3rd c. A.D ... Pit in SW corner of Heliaia Peristyle (mint).
... Both the coins and the flans are imperfect, many of the latter having irregular thicknesses or holes in them ... Obviously, the "hoard" in the pit represents a lot of rejected coins and flans, which were presumably put away to be melted down later, perhaps on the eve of the Herulian attack.
It will be very interesting to know if other evidence can be adduced for placing the Athenian mint ca. 250 in the "Heliaia".