Fill in shaft; upper fill in lower chamber; fill in vaulted chamber. Coins:
29 April 1937 #1-#8
5 May 1937 #1-#27
26 May 1937 #1-#12
27 May 1937 #1-#10
28 May 1937 #1-#6
24 March 1938 #3-#7
12 June 1939 ... Late 4th c. A.D.
Lower fill in shaft; upper and lower drain filling; shaft, in upper chambers. Coins:
31 March 1938 #1
9 May 1939 #1-#2
20 June 1939 #1 Estimated Grid ... Late 2nd-earliest 3rd c. A.D.