information wanted on 1950,s/1960,s tank cars is there a web site out there with plenty of pictures ect,
Try Google.
http://www.rr-fallenflags.org./ Most of the pictures are dated. Look for the time period that you want.
If you want to see excellent reproductions of these Tank Cars take a look at the Atlas O website and go to New Products. They show plently of different tank cars.
Do a web search for “Jim Sands railroad photos”. Jim Sands took many photos in the 1960’s.
The best source for information is an H&M Productions Book in the CLASSIC FREIGHT CAR series that is all about Tank Cars. That is a wonderful source of photos and data.
Andrew F.