B&O C-16 0-4-0's Or known as "DockSider's" Were built in 1912. They served all the way until the late 50's. Only 4 members of the class was ever built. and all served around Baltimore. They would be later converted to burn oil. This single upgrade is the reason they ran much past the end of steam. Today only one is preserved at the B&O Railroad museum. Free to use with credit