
Challenge Coins: Marks Tempered by Time, Legacies Carefully Preserved
On my grandfather’s 80th birthday, he took out a copper commemorative coin from an old wooden box. It glowed with a warm luster — an awarded coin to him in the 1950s for participating in the construction of a major national project. Although the gear pattern on the coin’s surface had become slightly blurred, the edges showed no signs of wear. Grandfather said he had wrapped it in layers of red silk cloth and kept it


























