OK here are a couple of points .
When the repair was done did any one complain or was the fact that no one bothered as long as it worked ?
How much ? Can you do it cheaper. Or not bothered what it looks like .etc.etc.
These are comments still heard to day when people are told how much work will cost . Going back in time there were as there are now many "local blokes" who were not trained gunsmiths who did some odd jobs , in the example of the unengraved joint pin there may not have been an engraver within 100 miles who could or would have done the work and the additional cost of doing work on an old gun would not be worth the effort to the customer .
These days we tend to look at things from a different prospective . That old motor bike in Grandads shed for example that we rode around a field when we were kids and never though anything of crashing could now be worth a lot of money and would be treated with respect . 410's left to rust as it was always belittled as only being a kids gun is now a very desirable object .
It is not always fair to criticise the ways things were done in the past .Its when they are done now that I object to .