Ohio Art produced several tin trains throughout their product line with their earliest offerings listed in their 1928 catalog:
This is their #85 set which consisted of a loco and 3 pass coaches. Additional sets offered were the # 90 8-car set, #75 3-car set, #90 6-car set and the #70 2-car set. All cars featured wood wheels.
Also available in 1928 was the #65 circus set, that featured a loco and two zoo animal boxcars.
Later versions of the #85 were available with hollow tin wheels and two different litho schemes
Ohio Art also produced the Ohio Art Company Lines train between 1928 and 1936 with wooden wheels
The 1936 catalog lists several OACL sets available. #75 was a 3-car set, #85 was a 4-car set and #90 was a 6-car OACL set with two baggage cars and 3 passenger coaches.
Also offered in the 1936 catalog was the 3-car #75-S Silver Streak Streamlined train
3-color litho was added to later production and sets were offered in both 3 and 4-car options
Both versions of the streamliner were number 220 in the litho.
I have not been able to determine the exact time for the appearance of the 221W Union Pacific streamliner, with 4-color litho but the similarities lead me to believe they were also offered pre-WWII
Ohio Art, like many other toy suppliers throughout the world contracted with Technofix in the 1960s to market their #601 Switch and Dump train set that was basically a reboxed Technofix #297 shuttling train. Ohio Art's 1960 catalogs also listed Technofix #300 Alpine Express as their set #614 and Technofix's Hi-Way road set as their set # 615.
This id chart is by no means complete, but it does give a little history to these lesser-known tin train offerings.
