On Interesting Treasure: The Jewel Box
The tail is the tail of a dead rat. The spheres are balls of rat shit.
If the coffer is dusted off however, it begins to gleam. The body is made from silver, and the entire lid is made from gold. It is studded with Lapis Lazuli, Turquoise, and coral. It is studded with several small but valuable rubies, emeralds, and aquamarines.
There are several ancient motifs, 12 dancing human figures, a naga, and even monkeys.
If anyone tries to sell the tail or the rat droppings, they are worthless. The coffer is worth 8,500 gold pieces to any buyer.