Agreed, Vertigo mastered their music very well. I have the first 4 Sabbath albums on UK Vertigo swirl label as well as the first Uriah Heep. Great sound quality on all of them. I bought them before the demand for them shot way up, but they were still the most I've spent on vinyl. That Vertigo label is too cool to look at; I had to have them
On some of them the same stampers were used into the space ship label era. Those are much cheaper.
The QRP 200g version is a different mastering from the earlier 180g version pressed at RTI. I don't mind the sound of the 180g version, but an early US pressing mastered by George Piros is also excellent, but different.
To add to the list:
Allman Brothers Band - At Fillmore East (Pink Capricorn), self titled (yellow Atco, pressed at Monarch), Idlewild South (yellow Atco, pressed at Monarch). IME no CD or LP reissue compares to those originals.
Yes - Close to the Edge. US original on B'way label, also George Piros. I am forgetting many other bands, I will leave it at that for now