4 Different N-Scale New York Central Locomotive Shells only

all are used 

#3125 #1711 and two are un-numbered

three of the shells are missing steps

#1711 Black (3 5/8") has all the steps

#3125 Black (4") missing 3 of 6 steps

un-numbered Gray (4") missing 3 of 6 steps

un-numbered Gray (4 3/4") has no step