We have seen who and what were the Co-Hong, the Outside Chinese merchants, the Linguists and Compradores, and what their respective relations with foreigners were. There now remains the _Shroff_, or money dealer, whose services were indispensable, particularly in receipts. They were manifest daily and hourly in the broad arched passages passing through the Factories, along which, as was constantly said, one could never move without seeing heaps of silver being examined and hearing its metallic ring as successive quantities were poured in and out of copper scales. Scarcely a day or even an hour passed without this glittering accompaniment of old Canton life.
Pieces of silver as well as dollars were shroffed and weighed before being deposited in the treasury. When that was done, dollars had no longer a distinct existence, for in commerce the Chinese treat silver and gold as they do lead, iron, or copper. In this they show a characteristic good sense, and are rewarded by it in the facility with which all money transactions are carried on. As the result of long experience, the imported dollar was found to be worth 717/1000 taels in weight, and this became the standard in all current book accounts. No coined money exists in the Empire except copper cash, with which every one is familiar. The use of it is confined to the daily wants of the people, and it never enters into transactions of importance, except when money-changers replenish their stocks. The convenience of such a circulating medium gives facility to every one, no matter how humble his requirements, and was a wise piece of legislation. The obverse of the coin bears the name of the Emperor during whose reign it was made, in Chinese characters, with two others which mean 'circulating value.'[31] Commerce, on the other hand, stood in need of a larger representative of value, and this was supplied by gold and silver bars or lumps in portable sizes. Bar gold bears a small proportion to bar silver in quantity, and is in oblong pieces usually of ten taels in weight, and silver[32] in oval lumps called 'shoes' of various sizes and values. There is no Government interference in the manufacture of these bars and shoes for purposes of trade, no more than there is of any other metal, while the guarantee of their purity and value is simply the stamp of the Shroff or money house by which they are issued.