Setting the first drums of the columns of the lower inner order. DUPLICATE ... AMS Horizontal (normal) ... 1954
Pouring first section of the upper floor slab ... AMS northeast 3514 Horizontal (normal) ... 11 May 1955
Pouring first section of the upper floor slab ... AMS east 3516 Horizontal (normal) ... 11 May 1955
Pouring the first section of the upper floor slab. View at floor level ... AMS southeast 3518 Horizontal (normal) ... 11 May 1955
Pouring the first section of the upper floor slab. View at floor level ... AMS 3520 Horizontal (normal) ... 11 May 1955
