
Sometimes what you might consider to be "amateur" might merely just be evidence of it having been hand made.
Old stuff often does have manufacturing flaws, the metal wasn't of such good quality as it is now, because of advances in the chemical composition. Annealing ovens were not as well controlled, all sorts of problems arose because of the primitive conditions of manufacturing.
Early on in a glass collector I know's career, he dismissed a large Irene Stevens cut bowl going for a song, because the metal had bits of frit and bubbles in it.
He thought that meant it wasn't right.
He was completely wrong - the frit and bubbles meant it was absolutely right.
