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| Drain ... AMS 61 Horizontal (normal) ... 2 May 1932 ... Drain. |
| Drain ... AMS Horizontal (normal) ... Drain. |
| Drain ... AMS Horizontal (normal) ... Drain. |
| Drain ... AMS Horizontal (normal) ... Drain. |
| Drain ... AMS Horizontal (normal) ... Drain. |
| 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. |
| From south (slightly east of above). From left to right: Drain 1; Drain P; Drain 3; Drain 4H; Drain 4; Drain 8 ... AMS Horizontal (normal) ... From left to right: Drain 1; Drain P; Drain 3; Drain 4H; Drain 4; Drain 8. |
| Elliptical Drain. Great Drain. Looking north ... AMS Horizontal (normal) ... Elliptical Drain. Great Drain. |
| From south. From left to right: Drain P; Drain 3; Drain 4H continued; Drain 4 ... AMS Horizontal (normal) ... From left to right: Drain P; Drain 3; Drain 4H continued; Drain 4. |
| Stretch of Roman drain interrupted by Great Drain (continuation of drain) ... AMS 1210 Horizontal (normal) ... 16 Jul 1970 ... Stretch of Roman drain interrupted by Great Drain (continuation of drain). |
| Great Drain ... Scanned 2005 for the 75th anniversary exhibition and publication. 2356 Horizontal (normal) ... 13 Jun 1939 ... Great Drain. |
| Great Drain ... Scanned 2005 for the 75th anniversary exhibition and publication. 589 Horizontal (normal) ... 8 May 1947 ... Great Drain. |
| Great Drain ... Scanned 2005 for the 75th anniversary exhibition and publication. 589 Horizontal (normal) ... 8 May 1947 ... Great Drain. |
| Drain 10 ... Scanned 2005 for the 75th anniversary exhibition and publication. 3487 Horizontal (normal) ... October 1949 ... Drain 10. |
| Tile drain ... Scanned 2005 for the 75th anniversary exhibition and publication. 411 Horizontal (normal) ... July 1947 ... Tile drain. |
| Brick Drain ... AMS 199 Horizontal (normal) ... 9 Jun 1931 ... Brick Drain. |
| Poros drain ... AMS 801 Horizontal (normal) ... 3 May 1938 ... Poros drain. |
| Poros drain ... AMS 804 Horizontal (normal) ... 3 May 1938 ... Poros drain. |
| Drain III ... AMS Horizontal (normal) ... June 1981 ... Drain III. |
| Drain III ... AMS Horizontal (normal) ... 22 Jun 1981 ... Drain III. |
| Drain 2 ... AMS Horizontal (normal) ... Drain 2. |
| Drain 10 ... AMS 3487 Horizontal (normal) ... October 1949 ... Drain 10. |
| Tile drain ... AMS Horizontal (normal) ... Tile drain. |
| Tile drain ... AMS Horizontal (normal) ... Tile drain. |
| Tile drain ... AMS Horizontal (normal) ... Tile drain. |
| Tile drain ... AMS 411 Horizontal (normal) ... July 1947 ... Tile drain. |
| Tile drain ... AMS Horizontal (normal) ... Tile drain. |
| ΓΓ Drain ... AMS Horizontal (normal) ... ΓΓ Drain. |
| Great Drain ... AMS 589 Horizontal (normal) ... 8 May 1947 ... Great Drain. |
| Great Drain ... AMS 589 Horizontal (normal) ... 8 May 1947 ... Great Drain. |
| Great Drain ... AMS Horizontal (normal) ... Great Drain. |
| Drain B ... AMS Horizontal (normal) ... Drain B. |
| Tile drain ... AMS Horizontal (normal) ... Tile drain. |
| Drain Pit ... AMS Horizontal (normal) ... Drain Pit |
| Great Drain ... AMS 2356 Horizontal (normal) ... 13 Jun 1939 ... Great Drain. |
| Built drain ... AMS Horizontal (normal) ... Built drain. |
| Built drain ... AMS Horizontal (normal) ... Built drain. |
| Built drain ... AMS Horizontal (normal) ... Built drain. |
| Built drain ... AMS Horizontal (normal) ... Built drain. |
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