Origins
The sculptures date from classical antiquity and have been attributed to the 4th century BC Greek sculptor Lysippos, although this has not been widely accepted. Although called bronze, analysis suggests that as they are at least 96.67% copper, they should be seen as an impure copper rather than bronze. The high tin content increased the casting temperature to 1200-1300 °C. The high purity copper was chosen to give a more satisfactory mercury gilding. Given current knowledge of ancient technology, this method of manufacture suggests a Roman rather than a Hellenistic origin.
Read more about this topic: Horses Of Saint Mark
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