| 摘要 |
Toy/game comprising a hollow, cylindrical shaft with grooves incorporated, in which 10 numbered, uniform, moveable steps are accommodated, so that the game set resembles a spiral staircase (see drawing). The game consists of mixing up the 10 numbered steps and moving them along the grooves, until they are fitted in sequence with one another, so that the toy again appears as a spiral staircase. <IMAGE>
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