| 摘要 |
A portable game accessory to a billiard-type table with enclosing rails and a playing surface for playing a special game comprising a planar overlay which carries special game target indicia. The overlay has beveled edges which are sufficiently thin to enable a billiard ball to roll onto the upper surface of the overlay without significant deflection of the billiard ball. This accessory has for holding the overlay in a preselected one of a plurality of different possible positions relative to the enclosing rails on the playing surface against movement in response to the billiard ball rolling onto the upper surface.
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