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| View of the Great Drain in front of the Metroon ... north Horizontal (normal) ... 15 May 1935 |
| View of the Great Drain ... southeast Horizontal (normal) ... 29 June 1935 |
| New course of the Great Drain ... northeast Horizontal (normal) ... 1937 |
| New course of the Great Drain, as found. The fork is visible in the middle foreground ... south Horizontal (normal) ... 1937 |
| West Branch of the Great Drain; the new course to the right, the old course to the left beneath Building C ... north Horizontal (normal) ... 1937 |
| Polygonal wall beneath later course of Great Drain ... east Horizontal (normal) ... June 1937 |
| The West Branch of the Great Drain in its early and late courses ... southwest Horizontal (normal) ... June 1938 |
| Great Drain opposite the northeast corner of the Metroon, detail of masonry ... southwest 1470 Horizontal (normal) ... 19 July 1961 |
| Section opposite south part of the Eponymous Heroes. Cover slabs removed ... west 1903 Horizontal (normal) ... August 1967 |
| Section opposite south part of the Eponymous Heroes. Cover slabs removed ... southwest 1905 Horizontal (normal) ... August 1967 |
| Section opposite the south part of the Eponymous Heroes. Cover slabs removed. Details of wall ... west 1907 Horizontal (normal) ... August 1967 |
| Section opposite the south part of the Eponymous Heroes. Cover slabs removed. Details of wall ... west 1908 Horizontal (normal) ... August 1967 |
| Section of the Great Drain opposite the Eponymous Heroes, interior view ... south 1909 Horizontal (normal) ... August 1967 |
| Section of the Great Drain opposite the Eponymous Heroes, interior view ... north 1910 Horizontal (normal) ... August 1967 |
| Great Drain west of the Eponymous Heroes. Isometric drawing ... W.B. Dinsmoor, Jr ... PD 2286 Horizontal (normal) ... 1974 |
| Cutting for the Great Drain, after clearing, before laying pipe ... south 2172 Horizontal (normal) ... 23 November 1953 |
| Cutting for the Great Drain, after clearing, before laying pipe ... north 2173 Horizontal (normal) ... 23 November 1953 |
| The Great Drain just to the south of the railroad wall ... south 2191 Horizontal (normal) ... 8 March 1955 |
| Middle drain to north of Building C before final clearing. West Branch of the Great Drain showing its two courses ... Publication says from the northeast. southwest 2564 Horizontal (normal) ... 21 May 1938 |
| Middle drain to north of Building C, as cleared ... north 2567 Horizontal (normal) ... 31 May 1938 |
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