I would respectfully suggest that not all the tools made back in the day were great. I am pretty sure there was cheap junk then to, but the cheap junk did not last a couple of centuries.
Case in point in the Tool Chest Of Benjamin Seaton it was mentioned that the hollow and round sets were made from second rate beech as some had knots in them. This set survivied because it wasn't used much and stayed in the family until a museum got their hands on it.
Also a question that is a bit off topic, back in the day that is say 1950's or so who made craftsmen chisels, I just saw a set of three at an antique mall yesterday really heavy with a lot of possibly nickel in the mix as they were a bit shiny, and they were socket chisels that looked a lot like Stanley 750's?
Craftsmanship is the skill employed in making a thing properly, and a good craftsman is one who has complete mastery over his tools and material, and who uses them with skill and honesty.
N. W. Kay