Northwest corner after the removal of the late drain ... south 4509 Horizontal (normal) ... 12 Aug 1966
Northwest corner after the removal of the late drain ... AMS south 4509 Horizontal (normal) ... 12 Aug 1966
View after clearance of foundation bedding pits ... northwest 4511 Horizontal (normal) ... 12 Aug 1966
View after clearance of foundation bedding pits ... AMS northwest 4511 Horizontal (normal) ... 12 Aug 1966
View after clearance of foundation bedding pits ... southwest 4513 Horizontal (normal) ... 12 Aug 1966
View after clearance of foundation bedding pits ... AMS southwest 4513 Horizontal (normal) ... 12 Aug 1966
View after clearance of foundation bedding pits ... east 4515 Horizontal (normal) ... 12 Aug 1966
View after clearance of foundation bedding pits ... AMS east 4515 Horizontal (normal) ... 12 Aug 1966