Coins: 9 April 1937 #1-#2 10 April 1937 #1-#2 12 April 1937 #1 Fill III (ca. 21.30m., cont. 4) period of disuse, to end 3rd. c. A.D. Fill IV (20.20-21.00m., cont. 1-3) another period of use, 4th. c. Fill ... To second half of 4th. c. A.D.