All or most representatives of both the L-4a and L-4b classes were later fitted with the "elephant ear" smoke deflectors, as seen in this photo of No. 3137 which I snapped at Mackinaw City, Michigan in August 1955. The L-4b was the first New York Central class to feature the multiple-bearing crosshead instead of the "alligator" type still used on the J-3 and L-3 classes and the earlier L-4s. (The multiple-bearing crosshead also appeared on the Niagara 4-8-4s and the P&LE A-2 2-8-4s.) By the time I was photographing steam, even these modern Mohawks had been displaced from most of the NYC's main lines and relegated to more lightly traveled lines. No. 3137 had about six months more to run when this picture was taken.