Seems so, well for this 5 1/2 plane yes, a nice thick even casting front to back, and a fairly tidy mouth of normal size, not like a burgundy cheap stanley with a huge mouth which likely would be a weak spot if dropped at some stage in its life.
I wouldn't say the quality is the same for the 60 1/2, as I had one of those, and there was a bit of a pocket in the casting of the sole of that plane.
If it was out of the stiff plastic heat shrink, I could have given that
lever cap screw a test, I doubt I'd like it TBH.
Likewise no way to test for square in the pack.
I've seen these before local in Chadwicks, and once again on discount for the same money, and a cheap not as nice no 4 plane beside for a lot more dough.
I thought it was a mistake the first time, strange and maybe a coincidence.