Boston Library Learns More Than Art Has Gone Missing Investigation was launched into Rembrandt, Durer works last month By Newser Editors and Wire Services Posted May 29, 2015 11:58 AM CDT 12 comments Comments Archivist Michelle Chiles, left, and Dr. Teresa M. Neff, HIP Fellow, help set up the Handel & Haydn Society bicentennial exhibit at the Boston Public Library in Boston, March 20, 2015. (AP Photo/Elise Amendola) (Newser) – Apparently more than just valuable artwork is missing from the Boston Public Library's archives. A library spokeswoman says a retired employee who now volunteers told administrators last week that gold coins originally placed in the cornerstone of the main building have been missing for decades. The spokeswoman says the library has informed police. The coins were apparently placed in an 1888 time capsule that was opened in the 1990s. No estimate of the coins' value was disclosed. Meanwhile, police and the FBI are investigating the disappearance of two pieces of artwork worth more than a half million dollars combined; a top employee has been placed on leave. It's unclear whether the missing art pieces, a 1634 Rembrandt etching and a 1504 Durer engraving, were stolen or simply misfiled. A city-commissioned audit released this week shows "the library inadequately protects its special collections from theft, and does not keep a complete inventory of its prized objects," per the Boston Globe.