Well. Shaft. Southeast Cave ... ΝΝ-20 3821, 3822 ΝΝ 685 ST 304 ΝΝ 686 L 3761 ΝΝ 715 L 3788 ΝΝ 725 SS 8957 ΝΝ 709 T 2042 ΝΝ 710 S 1157 ΝΝ 761 L 3791 ΝΝ 837 S 1165 ΝΝ 779 L 3793 ΝΝ 1008 S 1172 ΝΝ 2346 P 17507 ΝΝ 2347 P 17508 ΝΝ 2348 P ...
Shaft. Cave ... ΝΝ-20 ΝΝ 685 ST 304 ΝΝ 686 L 3761 ΝΝ 715 L 3788 ΝΝ 725 SS 8957 ΝΝ 709 T 2042 ΝΝ 761 L 3791 ΝΝ 710 S 1157 ΝΝ 837 S 1165 ΝΝ 739 S 1163 ΝΝ 1008 S 1172 ... 6 May 1939