Marco Polo now completes his description of this fine city and enumerates the twelve quarters it contains, in many of which the rich merchants have their palatial houses, for commerce flourishes in this town, and more valuable merchandise is brought to it than to any other in the world. It is the depôt and market for the richest productions of India, such as pearls and precious stones, and merchants come from long distances round to purchase them. The khan has established a mint here for the benefit of trade, and it is an inexhaustible source of revenue to him. The bank-notes, sealed with the emperor's seal, are made of a kind of card-board manufactured from the bark of the mulberry-tree. The card-board thus prepared is cut into various thicknesses according to the value of the money it is