The illegitimate prevention device which uses the premium exchange ticket for illegality prevention and the premium exchange ticket for illegality prevention and uses the premium exchange ticket for illegality prevention the illegitimate prevention manner

摘要

PROBLEM TO BE SOLVED: To easily and securely prevent gift from being exchanged by immedi ately discriminating whether a coupon is a copied one, when the coupon is illegally copied. SOLUTION: A counted result of playing balls, playing medals or the like delivered from game devices such as a pachinko device, a slot machine, etc., is printed on the gift coupon 1. The gift coupon 1 is provided with a pattern 3 (3a, 3b) such as patterns and characters or the like printed in advance with fluorescent ink on the gift coupon, and a figure 2 comprising a bar code indication 2a and a numerical indication 2b printed on the surface of the gift coupon in accordance with the counted result of playing balls or the like. When the gift coupon 1 is copied, a part or the whole part of the figure 2 and the pattern 3 is unclearly copied.