Icon, Name, Title, Date, Chronology
Α-1 Mixed 28 May 1931-23 June 1931 Α-2 Mixed 24 June 1931- 14 July 1931 Α-3 Mixed 14 July 1931-7 August 1931 Α-4 Mixed 8 August 1931- 7 September 1931 1 February 1932-19 February 1932 Α-5 Mixed 20 February 1932-21 March 1932; 6 April, 1932 Α-6 Mixed 20 May 1932. Rectangular Rock-Cut Shaft (Vanderpool): 15 August 1932-15 October 1932, 9-24 December 1932. May, June 1933. 25 May 1934-31 May 1934. 23 February 1935-5 March 1935. Α-7 Mixed 4 February 1935-31 May 1935 June 1936 Α-8 Finds 1935, 1936 Α-9 Mixed 1937, 1938, 1952 Β'-1 Mixed 16 April 1934 - 15 May 1934, 23 November 1934 Β'-2 Mixed 14 May-25 May 1934 Β'-3 Mixed 28 January 1935 - 23 February 1935 Β'-4 Mixed 25 February 1935 - 16 March 1935 Β'-5 Mixed 18 March 1935 - 11 April 1935 Β'-6 Mixed 11 April 1935 - 9 May 1935 Β'-7 Mixed 10 May 1935 - 3 June 1935 Β-1 Mixed 4 September 1933-28 February 1934 Β-2 Mixed 1 March 1934-21 March 1934 Β-3 Mixed 22 March 1934-12 April 1934 Β-4 Mixed 13 April 1934-28 April 1934