fig 841A, Concrete stacking blocks ; variations in form and size

fig 842A, WOODPROTECT ; Storage of wooden sleepers

fig 858A, WIEDAUWKAAI ; 1/500 model

fig 858B, WIEDAUWKAAI ; 1/500 model

fig 859A, Circular Stacking ; 1/100 model

fig 859B, Circular Stacking ; 1/100 model

fig 859C, Circular Stacking ; 1/100 model

fig 859D, Circular Stacking ; 1/100 model

fig 859E, Circular Stacking ; 1/100 model

fig 843A, Circular Stacking ; Isometric drawing

fig 844A, Circular Stacking ; Stacked roof detail

fig 845A, Circular Stacking ; RUFF