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| Wall at 24-/ΙΗ ... AMS 1135 Horizontal (normal) ... 14 Jun 1938 ... Wall at 24-/ΙΗ. |
| Area 51/ΙΗ-ΚΒ ... AMS 573 Horizontal (normal) ... 13 Mar 1935 ... Area 51/ΙΗ-ΚΒ. |
| Area 51/ΙΗ-ΚΒ ... AMS 573 Horizontal (normal) ... 13 Mar 1935 ... Area 51/ΙΗ-ΚΒ. |
| Cutting at 66/ΙΗ ... AMS Horizontal (normal) ... Cutting at 66/ΙΗ. |
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