[The impenetrable secret, a game each bearing a series of proverbs printed on both sides].[between 1760 and 1780?]engAttributed to Horace Walpole in the British Museum catalogue. Now known not to have been created by Walpole or printed at Strawberry Hill. See Hazen, A.T. Bibliography of Horace Walpole, page 173 and his Bibliography of the Strawberry Hill Press, pages 145-148.A set of cards with moral maxims printed on fronts and backs in black and red ink: e.g., "Poverty is the fruit of idleness, Small griefs are loud, great ones still ..."All engraved with decorative border.Imperfect set: one card lacking and printed leaf of Explanation. For further information, consult library staff.