Construction
The statue is not as well preserved as it appears. X-Rays taken of the sculpture reveal that there are cracks that extend almost completely around the centre of the cats body and only an internal system of strengthening prevents the cat's head from falling off. The repairs to the cat are thought to have been carried out by Major Gayer-Anderson who was a keen restorer of antiquities in the 1930s. He is thought to have rediscovered the surface of the cat after the presumed corrosion had been removed.
The cat was manufactured by the lost wax method where a wax model is covered with clay or clay and water until there is sufficient thickness. The clay can then be fired in a kiln and the wax flows out. The now hollow mould can be refilled with bronze. In this case the metal was 85% copper, 13% tin, 2% arsenic with a 0.2% trace of lead. The remains of the pins that held the wax core can still be seen using x-rays. The original metalworkers would have been able to create a range of colours on a bronze casting and the stripes on the tail are due to metal of a differing composition. It is also considered likely that the eyes contained stone or glass decorations.
Read more about this topic: Gayer-Anderson Cat
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