Thinking back, I remember an account from somebody who was detailed to inspect a large lot of WW2-vintage Inglis High-Powers that were surplussed from Britain in the 1980s. Out of something like 10,000 well-used pistols, the number they had to scrap for serious defects was...four. Another hundred needed new extractors...and that was about it.
I had an Inglis and wish I had kept it. The finish was war time but the quality was first class. I don’t even know how I could tell, but you could tell it was quality.