Overall: 6 7/8 x 1 3/8 x 1/4 in. ( 17.5 x 3.5 x 0.6 cm )
Hotel key with "873" impressed on one side of top and "The Waldorf-Astoria / NEW YORK" impressed on the other; attached with length of chain to roughly circular medallion with crown, wreath, and initials "W-A" in relief on one side and crown, shield held by two female figures, and inscription "THE WALDORF-ASTORIA / NEW YORK" on the other.
impressed: on key: "873" and "The Waldord-Astoria / NEW YORK" in relief: on tag: "W-A" and "THE WALDORF-ASTORIA / NEW YORK / D'S'N PATD"
Due to ongoing research, information about this object is subject to change.