| 摘要 |
The device comprises a circular tray (1) with a raised edge (3). Along an axis (5), which is offset with respect to the centre of the tray, there is a series of pivoting keys (6a-6i) carrying a distinct number on one face. Two dice (17,18) are provided which can be thrown into the tray, to show a number, and the user can then turn one or several of the keys (6a-6i) as a function of the results of the dice throw. The keys are kept apart from each other on their supporting axis, by means of spherical mountings on the axis, which are accommodated in hemispherical cavities in the sides of the keys. Further tokens may be provided for recording the results of previous games.
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