Purity
Note to The Currency Holders And Store Holders;The Disease Of Desire by Ruskin

The purity of the drachma and sequin were not without significance of the state of intellect, art, and policy, both in Athens and Venice;—a fact first impressed upon me ten years ago, when, in daguerreotypes of Venetian architecture, I found no purchasable gold pure enough to gild them with, but that of the old Venetian sequin.