WALLACE, EDGAR. The clew of the silver key. (In Detective story magazine, Sept. 20-Oct. 25, 1930) (Pub. abroad as The clue of the silver key, in The London daily herald, Mar. 17-Apr. 22, 1930) © 17Mar-22Mar30, AI-13846, 13Sep30, A5-23384; 24Mar-29Mar30, AI-13888, 20Sep30, A5-23487; 31Mar-5Apr30, AI-13924, 30Sep30, A5-23488; 7Apr-12Apr30, AI-13951, 7Oct30, A5-22889; 14Apr-17Apr, 19Apr, 21Apr-22Apr30, AI-13997; 14Oct30, A5-22988; 14Apr-17Apr, 19Apr, 21Apr-22Apr30, AI-13997; 21Oct30, A5-24087. Patricia Marion Caldecott Frere (C); 31Oct57; R202010-202009, 202011-202014.