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| Drain at point of exit from the Fountain House ... north 4052 Horizontal (normal) ... 22 Aug 1961 |
| West end of the stepped retaining wall ... south 3496 Horizontal (normal) ... 22 Aug 1961 |
| Fountain House Drain; Tributaries. Drain P ... Κ-20 4052, 4053 83-33 ... 22 August 1961 |
| Outer Walls of Heliaia; West ... Κ-18 3496, 3497 83-32 ... 22 August 1961 |
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