| 摘要 |
The invention concerns a writing implement, in particular a pen comprising a casing (1a, 1b), characterised in that the casing (1a, 1b) or a piece directly mounted comprises at least a housing (6) with an external opening covered with a transparent wall (7). The height of the housing (6) between its base and said transparent wall (7) is substantially constant, said housing (6) containing at least a mobile decorative element (9) such as a diamond one dimension of which perpendicular to said height is substantially less than the corresponding dimension of the housing (6) This mobile decorative element (9) is mounted in a support (10) comprising two guideways (10a, 10b), respectively adjacent to the base of the transparent wall (7), these guideways enabling the random motion in translation and in rotation about itself of the decorative element (9) inside the housing (6).
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