I plan on collecting one by one, over the next few years, the early 4-wheel Lionel 800 tinplate series, being #802, 803, 804 etc. (I think all of these have the nice Lionel Lines metal ID plate on them)
I noticed, however, that there is also a Lionel #902 gondola, which although it is 4-wheel, doesn't look like it was part of that earlier set. It seems to have the same type of couplers as the 800 series set.
Was the 902 just an odd one-off car, or was there a later Lionel series/set of 4-wheelers, in the 900 range, with the same couplers?
Thanks for any info.