Bill Fulton doesn’t remember losing his wallet，but its return helped him remember the past.The leather stayed smooth and the cowboy design unblemished (完美无缺的)．And when he looked inside，the contents brought back memories from 1946，when he apparently dropped the wallet behind the balcony bleachers (露天看台) in the Baker Middle School gym. Fulton’s Social Security Card and bicycle license，bearing the address where he lived during his teenage years，were positioned in their respective compartments，apparently untouched since the year after World War Ⅱ ended.