There are 2 titles associated with this firm.

@book{ wphp_23946
  author={Percy,Elizabeth Seymour},
  year={1709},
  title={Meditations and prayers to be used before, at, and after the recceiving of the holy sacrament of the Lord's Supper. By Elizabeth, late Countess of Northumberland.},
  publisher={John Barnes [Pall Mall]},
  address={London},    }
@book{ wphp_25077
  author={More,Robert},
  year={1716},
  title={Of the first invention of writing. An essay. Compendiously treating of the whole art. More particularly; of letters, their number, order, and of how many variations capable: of their first invention; by ancient Writers ascribed to Adam himself; and for what Reasons. Of Short-Hand. Of Secret Writing, Decypherable by the Key. Of Arithmetick, &c. Of the Improvement of Writing, at Home and in Foreign Parts: With an Historical Account of the most Eminent Professors of the Art. Also Maxims for attaining Perfection in It; and Observations on the Extensive Use and Application of It. Interspers'd with diverting History and Poetical Entertainments on the Subject. Whereunto are added, several pieces of the hands in use, not before published. By Robert More, Writing-Master and Accomptant, At the Golden Pen in Castle Street near the Mews Charing-Cross.},
  publisher={},
  address={London},    }