Those are International Models and another freight car they did was a B&O wagon top boxcar. I have 2 of them.
They also did B&O C16 switchers - the "dockside" 0-4-0 tank and the version with tender. I had both at one time in 3 rail. apparently they could be gotten that way,
These are early brass and the detail is not as good as Max Grey which came later and then US Hobbies which took over from Max Grey. I paid about 40 for each of my cars and that was OK. I think 70 is too high for a car with this level of detail. It does not compare with newer brass done in the last 10-20 years in detail etc. That is just my opinion.
As for the locos, they are are pretty crude mechanically. Basic size and detail is OK, but the mechanisms are rough. also all the ones I have seen including pacifics and atlantics did not have axle bearings. The axle was simiple mounted through holes in the brass channel frame. If you look at newer stuff, most if not all have bearings mounted in the frame for the axles. I don't think the old Internationals would stand up to much heavy running. But for a home layout as I had with the 0-4-0s, they never did show wear to me.