Well at Δ/13. Floor. Bedrock. Well Shaft ... ΠΠ-7 1360, 1361 ΠΠ 515 L 4488 ΠΠ 516 L 4489 ΠΠ 518 S 1342 ΠΠ 520 P 19378 ΠΠ 577 P 19506 ΠΠ 578 T 2606 ΠΠ 579 P 19507 ΠΠ 580 P 19508 ΠΠ 535 MC 767 ΠΠ 581 P 19509 ΠΠ 582 P 19510 Section ΠΠ 304 ... Apr 22 1948
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