First American Edition. Singer dustjacket art. Winner of the $7500 Lippincott Mystery Novel Contest and "introduces [John Mannering, The Baron] one of the most nimblewitted and lightfingered crooks ever to steal a pearl necklace from the unsuspecting neck of a dowager countess". A television series based on the exploits of Morton's Baron ran from 1966 to 1967. This is the first of the series to be published in America, and scarce thus. Near Fine, ownership stamp at front endpaper, in Very Good dustjacket, few shallow edge chips, modest shelf wear.