1. construction contract
2. Letter 22-4-'38
3. specifications
4. static calculation of the weighted concrete structure
5. static calculation for concrete revision
6. static calculation concrete foundation reinforcement
7. static calculation iron beams
8. provisional building permit with appended forum
9. extract trade register Fa. A.P. de Zwart Czu
10. 4 specification drawings and 1 in amended state
11. 1 drawing of altered frontage