According to the excavator " a pre-herulian filling dumped in to fill the cistern some few years after the Herulian destruction". Coins:
10 June 1936 #2-#6
11 June 1936 #1-#19
12 June 1936 #23-#27 P 11936 ... A.D. 267 to mid 3rd c.
Actually in 38/ΙΕ, nbp. 766).
Pit contained at top much pottery and a few coins; sand for about 0.70m below, produced little pottery but many coins including some 2nd century Imperial and one of Salonica ... 3rd c. A.D.