Did you lose something?
Check the Lost and Found.  See Kate Danielowski in the Security Office located at 55 West 13th Street on the mezzanine.  If an item is turned in to a Security Officer, it will end up in this location.

Did you find something?           
Please turn the item over to a Security Guard in the building where the item is found or at 55 West 13th Street.  You will be asked to fill out a "Found Item" report or the guard will ask for your name and he/she will fill out the report.  You are not obligated to give your name.  The item then goes to the Lost and Found in the Security Office and waits to be claimed.

Items are kept for three months and then disposed of or given to charity.