Hoffmann, Professor, 1839-1919 · London : Frederick Warne · leaf 56
Fig. -18. Through this disc (the lock), are passed four boxwoodkeys, each consisting of a narrow slip of wood uniting twobroad, flat ends (see b in the same figure). When all are in-serted, the effect is as shown in Fig. 49. The puzzle is to … Fio. 49. disengage the keys from the lock ; no easy matter, for whenonce inserted they instantly fall crosswise in various direc-tions, each blocking the others when you endeavour toextricate them. 14 Puzzles Old and New. No. XXIII.—The Screw Box. This is a little box a couple of inches in height,…
Puzzles
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