The Official Apartment 4A Flag

n " The Staircase Implementation", an "apartment flag" is mentioned as a small blue flag with a  coat of arms on it of a gold lion  rampant on a  field of azure on it. Flipping it upside down signifies that the apartment is in distress. In " The Roommate Transmogrification", Raj was given a lapel pin version. It is seen in a magnet version on the kitchen refrigerator. Also in the "Fun with Flags" broadcasts, a full-size with fringe can be seen behind Sheldon along with the American flag. A desk size version is shown by Sheldon while Leonard is signing the original Roommate Agreement.