I would venture to say that only hard core airliner enthusiasts know that this is a TWA 757 in American Airlines colors. After American bought out TWA, the 757's were retained due to their ETOPS capability. Eventually the TWA 757s that went to American went on to serve with Delta which flies them with the addition of winglets. It's a bit hard to tell with the size of this photo but if you look at the A in American, just below it to the left is a TWA sticker.
