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| Drain 2 ... AMS Horizontal (normal) ... Drain 2. |
| Drain 4, Drain 1, Subsidiary Drain 2, and Drain 2. From the south ... Scanned 2005 for the 75th anniversary exhibition and publication. 673 Horizontal (normal) ... May 1932 ... Drain 4, Drain 1, Subsidiary Drain 2, and Drain 2. |
| Drain 4, Drain 1, Subsidiary Drain 2, and Drain 2. From the south ... AMS north 673 Horizontal (normal) ... 1 May 1932 ... Drain 4, Drain 1, Subsidiary Drain 2, and Drain 2. |
| Room A, Drain 2 ... AMS 1248 Horizontal (normal) ... 16 Jun 2004 ... Room A, Drain 2. |
| Drain 2, from the west ... Scanned 2005 for the 75th anniversary exhibition and publication. 279 Horizontal (normal) ... 12 Mar 1932 ... Drain 2, from the west. |
| Drain 2, from the east ... AMS west 243 Horizontal (normal) ... 7 Mar 1932 ... Drain 2, from the east. |
| Drain 2, from the west ... AMS east 279 Horizontal (normal) ... 12 Mar 1932 ... Drain 2, from the west. |
| Drain 2, from the east ... AMS west 357 Horizontal (normal) ... 29 Mar 1932 ... Drain 2, from the east. |
| Drain 2, from the east ... AMS west 243 Horizontal (normal) ... 7 Mar 1932 ... Drain 2, from the east. |
| Drain 3, branch at main Drain 2 ... AMS 279 Horizontal (normal) ... 12 Mar 1932 ... Drain 3, branch at main Drain 2. |
| Subsidiary Drain 5, Drain 2, and Erection ... AMS 680 Horizontal (normal) ... 27 May 1932 ... Subsidiary Drain 5, Drain 2, and Erection. |
| Drain 2, covering from the east ... AMS west 258 Horizontal (normal) ... 8 Mar 1932 ... Drain 2, covering from the east. |
| Drain 2, covering from the east ... AMS west 258 Horizontal (normal) ... 8 Mar 1932 ... Drain 2, covering from the east. |
| Room A, remnants of Drain 2 ... AMS 1326 Horizontal (normal) ... 16 Jun 2004 ... Room A, remnants of Drain 2. |
| Drain 2. Juncture with Drain 1 and western end ... AMS 690 Horizontal (normal) ... 19 May 1932 ... Drain 2. Juncture with Drain 1 and western end. |
| Drain 2 and Subsidiary Drain 5, from the southeast ... AMS northwest 690 Horizontal (normal) ... 27 May 1932 ... Drain 2 and Subsidiary Drain 5, from the southeast. |
| Ashy layer with cover slabs of Drain 1. Cover slab of Drain 2 visible at right in fill ... AMS
Cf. 2004-2-4 different orientation Horizontal (normal) ... 2004 ... Ashy layer with cover slabs of Drain 1. Cover slab of Drain 2 visible at right in fill. |
| Ashy layer with cover slabs of Drain 1. Cover slab of Drain 2 visible at right in fill ... AMS 1242 Horizontal (normal) ... 15 Jun 2004 ... Ashy layer with cover slabs of Drain 1. Cover slab of Drain 2 visible at right in fill. |
| Drain 1 at juncture with Drain 2, showing bridge ... AMS 685 Horizontal (normal) ... 19 May 1932 ... Drain 1 at juncture with Drain 2, showing bridge. |
| Subsidiary Drain 5 and Drain 2, from the north ... AMS south 680 Horizontal (normal) ... 27 May 1932 ... Subsidiary Drain 5 and Drain 2, from the north. |
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