Plaster cast of a base from a pier of the 'Draper's Pillar' by Jean Pouzadoux about 1890. The original was made by an unknown artist in about 1225-30.

Plaster cast of a base of a pier depicting the base of the 'Draper's Pillar' in the doorway of the north transept of the Cathedral of Reims. The base contains a relief believed to depict the story of a dishonest draper or cloth seller.

Cast of a base of a pier created in plaster in Paris by Jean Pouzadoux about 1890 and purchased from Messrs Jean Pouzadoux in 1890 for £60 (1500 francs). The cast is of the base of 'Draper's Pillar' which was sculpted in limestone by an unknown artist in Reims in about 1225-30 and is part of Reims Cathedral (east doorway, north transept).

Making plaster copies is a centuries-old tradition that reached the height of its popularity during the 19th century. The V&A's casts are of large-scale architectural and sculptural works as well as small scale, jewelled book covers and ivory plaques, these last known as fictile ivories.

The Museum commissioned casts directly from makers and acquired others in exchange. Oronzio Lelli, of Florence was a key overseas supplier while, in London, Giovanni Franchi and Domenico Brucciani upheld a strong Italian tradition as highly-skilled mould-makers, or formatori.

Some casts are highly accurate depictions of original works, whilst others are more selective, replicating the outer surface of the original work, rather than its whole structure. Like a photograph, they record the moment the cast was taken: alterations, repairs and the wear and tear of age are all reproduced in the copies. The plasters can also be re-worked, so that their appearance differs slightly from the original from which they were taken.

To make a plaster cast, a negative mould has to be taken of the original object. The initial mould could be made from one of several ways. A flexible mould could be made by mixing wax with gutta-percha, a rubbery latex product taken from tropical trees. These two substances formed a mould that had a slightly elastic quality, so that it could easily be removed from the original object. Moulds were also made from gelatine, plaster or clay, and could then be used to create a plaster mould to use for casting.
When mixed with water, plaster can be poured into a prepared mould, allowed to set, and can be removed to produce a finished solid form. The moulds are coated with a separating or paring agent to prevent the newly poured plaster sticking to them. The smooth liquid state and slight expansion while setting allowed the quick drying plaster to infill even the most intricate contours of a mould.
Flatter, smaller objects in low relief usually require only one mould to cast the object. For more complex objects, with a raised surface, the mould would have to be made from a number of sections, known as piece-moulds. These pieces are held together in the so-called mother-mould, in order to create a mould of the whole object. Once the object has been cast from this mother-mould, the piece-moulds can be easily removed one by one, to create a cast of the three-dimensional object.

The relief is traditionally believed to depict the story of a dishonest draper or cloth seller, a tale that featured in guides to the sculpture of Reims Cathedral in the 19th century. The Museum would have collected copies of this and other carvings from the cathedral, which has long been celebrated as an example of Gothic sculpture.

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