Bronzes often exist in a number of versions, made over many decades or even centuries. This is achieved through a variety of means, such as changes in the wax, new moulds taken from an existing bronze or the reuse of the existing model. This figure of a boar together with inv. no. A.153-1910 look almost identical. One is a fine, hollow cast (inv. no. A.153-1910), probably from the workshop of Antonio Susini, one of Giambologna’s most skilled assistants. This figure, however, is an ‘aftercast’, so called because it was cast from a mould taken from an existing bronze. The cast is solid and on the base are the outlines of the original hollow cast from which it was taken.