5 N-Scale Train Shells 
(4 are locomotive/Engine shells , 1 is a passenger car shell)
all may have damage/missing side steps

LOCOMOTIVES
UNION PACIFIC #514 (3 15/16" in length)
PENNSYLVANIA #9651 (3 13/16" in length)
CN #510 (3 7/8" in length)
?? no # - gray in color (3 7/8" in length)

PASSENGER CAR
?? #251x (3 9/16" in length) inside on roof N112B-A