Postwar Lionel O Gauge 3248 operating mail car in original box with original mail bag, C7+.  6428 U.S. Mail Railway Post Office with original magnet, detached from box car, tiny nick to a roof corner, otherwise C7.  Box shows a little light wear/tears to some flap folds, Push In tab is slightly punched.  Box is very bright, clean, very square and very solid.