Base of the northwest column ... northeast 486 Horizontal (normal) ... 4 Dec 1954
Base of the northwest column ... northwest 488 Horizontal (normal) ... 4 Dec 1954
Foundations for the northwest column ... 490 Horizontal (normal) ... 4 Dec 1954
Southwest column base before reinforcing foundations with concrete ... 345 Horizontal (normal) ... 12 Jan 1955
