Circa 1918-24 - Yellow / orange litho with gray roof, Type B, M-style trucks.

Circa 1925-1926 - above yellow, below orange with gray roof

Circa 1925-27 - Yellow litho with red roof, type C, M-style trucks

Circa 1927 -28 - Yellow litho with red roof (orange door) on type D, M-style trucks. Frame has open truss rods with NON snake-pull couplers. 

Circa 1928-30 - Same as previous car except has solid frame with snake-pull couplers.

Circa 1928-30 - Litho on this one is orange as compared to the yellow version above. 

Unusual litho in Burnt orange with a black roof and late frame.

Circa 1927-28 - Another one of those odd doors that we just can't explain.