在汽车靴子拍卖会上发现的一枚奇形怪状的1834年英国银币可能保留了近200年前罕见铸造事故的证据。先进的3D扫描和显微镜分析揭示了不寻常的金属变形A bizarrely deformed 1834 British silver coin found at a car boot sale may preserve evidence of a rare minting accident nearly 200 years ago. Advanced 3D scans and microscopic analysis revealed unusual metal distortions