There are 3 titles associated with this firm.

@book{ wphp_9863
  author={Hanover,Elizabeth},
  year={1796},
  title={To Her Royal Highness, the Princess Amelia, this book, representing the Birth-day gift, or, The joy of a new doll from papers cut by a Lady, is with permission most humbly dedicated by Her Royal Highness's very much obliged servant, P. W. Tomkins, historical engraver to Her Majesty.},
  publisher={Peltro William Tomkins [New Bond Street]},
  address={London},    }
@book{ wphp_9887
  author={Taylor (later Gilbert),Ann},
  year={1807},
  title={My mother : a poem : embellished with designs by a lady ; engraved by P.W. Tomkins, engraver to Her Majesty.},
  publisher={Peltro William Tomkins [New Bond Street]},
  address={London},    }
@book{ wphp_15562
  author={Taylor (later Gilbert),Ann},
  year={1807},
  title={My mother. A poem embellished with designs. By a Lady. Engraved by P. W. Tomkins},
  publisher={Peltro William Tomkins [New Bond Street]},
  address={London},    }