B1 schematic of reinforced concrete construction block 1, 1958
B2 schematic reinforced concrete construction block 2, 1958
B3 diagram reinforced concrete construction block 3, 1958
B4 diagram reinforced concrete construction block 4, 1958
B5 diagram reinforced concrete construction block 1, 2, 3 and 4, 1958
B6 schematic reinforced concrete construction block 5, 1958
B7 schematic reinforced concrete construction block 6, 1958
B8 schematic reinforced concrete construction block 7, 1958
B9 scheme reinforced concrete construction block 8, 1958