Dennison early waterproof case

例句：

1. 1. The museum exhibits a collection of Denison's early waterproof cases.
   博物馆展出了丹尼森早期的防水箱收藏。
2. 2. The Denison family has been collecting vintage denim for generations.
   丹尼森家族世代收集复古牛仔布。
3. 3. The Denison's early waterproof case is a treasure trove of history.
   丹尼森早期的防水箱是历史宝藏。