Found a fascinating piece of history while diving: a multi-purpose Art Deco dance compact from the late 19th or early 20th century. At first glance it looks like a simple coin purse, but it was actually a cleverly designed accessory made from German silver (a copper-nickel-zinc alloy) that offered the look of silver at a more affordable price. Inside, it features spring-loaded coin holders for small change, a compartment for calling cards or folded bills, and a circular vanity section that once