Hoffmann, Professor, 1839-1919 · London : Frederick Warne · leaf 409
Fig. 518. … Fig. 519. needful to illustrate its two portions separately. See Fig.518, in which a represents the larger horseshoe, or ring Key to Miscellaneous Puzzles. 393 proper; and c the smaller horseshoe, which fills up theopening. This latter is grooved all round, and revolvesfreely between the two arms,…
Puzzles
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