[WALPOLE, Horace (1717-97)]. The Mysterious Mother. A Tragedy, London: J. Dodsley, 1781. 8° (without the half title, some light spotting and staining towards the end). Modern marbled calf by Riviere, spine with red morocco lettering piece gilt. Provenance: John Leigh Penn (old signature on title). Second edition. First published in an edition of 50 copies by The Strawberry Hill Press in 1768. cf. Hazen Strawberry Hill Press p.82: "In 1781, HW arranged to have the tragedy reprinted and published by Dodsley, to forestall unauthorized reprints"; Lowndes VII, 2821; Rothschild 2494.