Just unboxed my first mint, shrink wrapped, Williams freight car, a Quad Hopper, ala Lionel. This train was packaged like it was going to war. Anyway, most striking is the coupler height mismatch. The Williams couplers are a 1/2 coupler width above the Lionel and MTH rolling stock. I don’t have many Williams pieces, but I don’t remember seeing this before. Is it common?