|
|
| View of the back wall ... south 3300 Horizontal (normal) ... 27 Jul 1961 |
| View of the back wall ... AMS south 3300 Horizontal (normal) ... 27 Jul 1961 |
| Deep central basin: detail of the northwest corner, showing outlet pipe ... northwest 3304 Horizontal (normal) ... 27 Jul 1961 |
| Deep central basin: detail of the northwest corner, showing outlet pipe ... AMS northwest 3304 Horizontal (normal) ... 27 Jul 1961 |
| View of the deep central basin, showing trace of overflow pipe ... south 3302 Horizontal (normal) ... 18 Jul 1961 |
| View of the deep central basin, showing trace of overflow pipe ... AMS south 3302 Horizontal (normal) ... 18 Jul 1961 |
| Earlier outlet of deep central basin, as cleared. The plaster used to block it still remains in left half. At right, later outlet ... south 3306 Horizontal (normal) ... 27 Jul 1961 |
| Earlier outlet of deep central basin, as cleared. The plaster used to block it still remains in left half. At right, later outlet ... AMS south 3306 Horizontal (normal) ... 27 Jul 1961 |
|
|
