| 摘要 |
<p>PROBLEM TO BE SOLVED: To objectively know the price with easy handling by forming a fulcrum hole at a point of holding a noble metal piece and other part of a card body in a weighty balance. SOLUTION: A noble metal piece 12 is formed of metal such as gold, silver, platinum, or iridium or alloy as a material, molded in a predetermined shape, and used. In this case, the piece 12 of several types of different sizes such as large, intermediate and small sizes or different thicknesses can be prepared, and masses of the respective pieces 12 can be decided constantly. And, the piece 12 is fixed to a position deviated from a center of a card body 1 to one side. Further, to compare and measure weights of the pieces 12, other part (accurately a part except the piece 12) of the body 10 is used as a weight. And, one fulcrum hole 22 is formed at least one position of a point for holding weighty balance between the piece 12 and the other part of the body 10. Incidentally, in the case of laminating a cover material 16 made of a thermally press bonded film or the like, the hole 22 is opened after the laminating.</p> |
