The trades-man's jewel : or a safe, easie, speedy and effectual means, for the incredible advancement of trade, and multiplication of riches; shewing how men of indifferent estates, may abundantly increase both their own and other mens trading and riches, without parting with money, or any stock out of their own hands : by making their bills to become current instead of money, and frequently to revolve through their hands, with as much in money as the sums therein mentioned do amount unto