Sequin (coin) who was prominently depicted on it, it was called the ', after the Zecca (mint) of Venice, since 1543 when Venice began minting a silver coin also called a ducat. The name of the mint ultimately derives from ("), meaning a coin mould or die. In some regions, in later centuries, this type of coins were stitched to women's clothing such as headdresses – this eventually led to the origin of the more modern word "sequins" to denote small shiny, circular decorations. Following the Venetian model, similar coins were used for centuries throughout the Mediterranean. After two hundred years of
Coining (mint) between each hubbing, however, the die being made must be subjected to an annealing procedure to soften the steel, making it easier to force the hub's image into the die. As the die is being cold forged in the hubbing press, the die's steel work hardens making the hubbed die harder and stronger than in its original state (an advantage over engraving the die). If, when the die is subjected to another hubbing, it is not lined up exactly with the hub, the result is a secondary image, or doubling. This is called die doubling, and results in such spectacular