It is important to understand that Venice in the XVI century – is not only a city in the lagoon: the possession of the Venetian Republic at various times included Parma, Treviso, Bergamo, the island of Cyprus, part of Croatia, Slovenia and colonies in the middle East and the black sea region – these belonging to the territory the Venetians called Domini di Terraferma (solid ground).
Sequin was not only in the territories that were part of the Republic – thanks to its stability, it in fact performed the functions of money in international trade: the goods of the Venetian merchants created a demand for pieces far beyond Venice. Later he became a reference for many countries in building up the national system of monetary circulation: it took the in Germany when the minting of Guilder, in Poland – zloty Russia – gold pieces.
What you could buy for 1 pieces? According to contemporaries, 15-20 gold ducats of the money enough to live a wealthy Venetian in the course of the year.
... And in Russia at this time reigned Ivan the terrible, and gold coins in circulation did not exist - no.