A few years ago, Wisconsin Zoological Museum worker Paula Holahan opened some cabinets that hadn't been touched for decades. Inside, she found several boxes of delicate glass replicas of ocean life, including this Argonauta argo. Some were crumbling, and all needed to be cleaned. Fascinated by the artistry involved in their creation, Holahan embarked on a quest to find out who had made them and what they were for.