In reading through all the available PS journals from 1966 it was clear that many members did repairs but none confided in the journal how they did simple things - straighten rims, clean pot touches, clean areas round handle attachments, straighten footrims, emphasise engravings and hallmarks, knock out dents, re-fix handles (this last one perhaps not so simple!) etc.
To quote a very senior PS member with considerable experience and knowledge (writing about photography in this case - but applicable to these matters) – "my learning curve could have been shortened by other people in the know - which never happened".
The Pewter Society, and a number of books, will lead you to a better understanding, perhaps. But all I want to do is enthuse you, show you what I enjoy, and lead you to where you might want to find out more for yourself.