Philadelphia, 9th of December, 1773 : By the medium of the curious numerical machine, invented by the ingenious Mr. Cox, are to be dsposed [as printed] of, the following two hundred and fifty lots of ornamented rich plated goods, (just imported by Samuel Bogle) by the sale of five hundred numbers at three pounds each, will raise fifteen hundred pounds, which is the very moderate value of the plate thus offered for sale.