@article{558429,
      note = {With an initial leaf of patent: 'Abstract of His Majesty's  Royal letters patent'.},
      author = {Bradford, William, and Hulls, Jonathan, and Darby, R.},
      url = {http://library.usi.edu/record/558429},
      title = {The gentleman's and trader's guide. Containing, the  description and use of a new-invented instrument, for  preventing frauds by counterfeit gold, which Gives the  Weight, and shews the Alloy of that metal, as well in Coin  as in Rings, Jewels, and all Kind of Utensils made thereof;  with The Quantity of Adulteration (if any) The instrument  Is neatly made in Brass, and very easily portable in the  Pocket - Any Person, by sending to the authors, (post paid)  may have an Instrument made to Weigh and prove any larger  Coin or Utensils of Gold and Silver than This Instrument is  design'd for, By W. Bradford, Teacher of the Mathematicks,  R. Darby, and J. Hulls. All of Campden, in the County of  Gloucester. Sold Wholesale and Retail by the Patentees at  their Ware-House in Campden, and in most Towns in England.  [electronic resource] :},
      publisher = {printed by J. Keating,},
      recid = {558429},
      pages = {19,[1]p. ;},
      address = {Stratford :},
      year = {1756},
}