Here's a new Lionel Lines stamp WITHOUT "Made in USA" . It appears to have different spacing than the other version so maybe it's not just a broken stamp.
That's on 820e1 Illinois Central 65784 light orange sides and roof, type 1 frame, 2 lines data – C. 20000 W. 30000, 820 to left and LL to right on end. NOTE - this car has no "Made in USA" line on end stamp.
The car next to it is 820h1 Illinois Central 65784 darker orange sides and roof, type two frame, 2 lines data – C. 20000 W. 10000, 820 to left and LL to right on end, gold corp stamp on bottom.
Here's side view of 820e with weird end stamp.