West end of the stepped retaining wall ... AMS south 3496 Horizontal (normal) ... 22 Aug 1961
Drain at point of exit from the Fountain House ... AMS north 4052 Horizontal (normal) ... 22 Aug 1961
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