What does a shekel look like? A drachma? Pieces of eight? See if you can spot them, below.
The term "treasury" has a very loose interpretation on this page. When I searched for "treasuries", I found that collections of king's belongings (located in tombs, museums, etc.) were classified as national treasuries. Upon reflection I realized that at one time a king or emperor was, indeed, the guardian of the national treasury and his palace the equivalent of Fort Knox.