The napkins from the Marriott's hotel bar. In case you can't read it:  On August 5, 1926 magician Harry Houdini performed his last and greatest feat in front of a group of journalists at the Marriott Eastside Hotel, previously known as hotel Shelton. Houdini spent 91 minutes inside a coffin submerged in the hotel Shelton swimming pool. He then emerge from the coffin making this the longest underwater burial. The skeleton of this pool still exists below what is now the O’Keefe meeting room on the lower level.