This is really a great thread, but what I am currently most curious about is how clean and polished historical pieces when they left the shop.
There is ample discussion on many different outlets on how polished a sword would have been, how even the grind would have been, if there were visible tool marks or scratches, uneven seams or if everything would have been pristinely cleaned up before it left the shop.
My personal assumption would be that it completely depends on why the piece was made and for whom. The Langmesser/Jagdschwert of Kaiser Maximilian may very well have been absolutely pristine and without any flaws (
https://www.khm.at/objektdb/detail/373833/).
A generic piece for a Landsknecht, on the other hand, churned out quickly during the 30 Years War, may very well have been left rather rough, dings, scratches and all, as long as it was structurally sound.
I would like to verify or falsify these assumptions, but accessing originals that are in good enough shape isn't all that easy and pictures often won't quite do the job.
Unfortunately, identifying imperfections that were actually present upon leaving the shop as opposed to being the result of damage or rough treatment during its time of use is in many cases probably very difficult if nor impossible - especially on corroded pieces.
I'm curious, for instance, whether the scratch marks seen on this Katzbalger blade here are manufacturing marks:
[ Linked Image ]
Whole piece can be found here:
https://www.fricker-historische-waffen.de/en/items-for-sale/edge-weapons/yag/c82/ItemList/submitFilter/blankwaffen-edge-weapons/landsknechtschwertkatzbalger-deutschschweiz-um-1520-objekt-nr-1066