The scene is typical of the area's foundries, with its open
plan floor and skylight roof supported on iron columns.
The floor is covered with sand used in the moulding process.
The sand had to be riddled to rid it of lumps which would
cause flaws on the surface of the casting. It is then placed
in the iron mould box on the floor, which has the pattern
incorporated into the top of it. A second box is then placed
on this and filled with more sand, thus surrounding the
After tamping down, the two halves are separated and the
pattern withdrawn, leaving a void in its shape. Afterwards
the two halves are reunited, channels are made for pouring
in the molten metal, and the mould is ready for casting.