Hoffmann, Professor, 1839-1919 · London : Frederick Warne · leaf 63
Fig. 61. and having on the top a copper coin, with two holes in it.This coin revolves in its centre, being rivetted to the top ofthe box, which has no visible opening. No. XXXVI.—The Ne Plus Ultra Match-box. This is, in our own opinion,.one of the best of puzzlematch-boxes. It is a flat box of… … Fig. 02. is sunk within the box all round (see Fig. 62). The Ne PlusUltra is of the simplest possible construction, having neitherstud, spring, nor catch about it; but, save by accident, astranger will puzzle in vain to open it, though any one inthe secret can do so with almost magical ease.…
Puzzles
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