Tuidjy 说:
OK, I just spent 30 minutes looking for any half-way reliable information supporting what Coraline and jocobhinds are saying, and I could not find anything, anything at all.
Yeah, finding info like this requires advanced knowledge, you won't find anything if you don't know the right words, in this case you're looking for the words "kazuuchi mono" (as mass produced swords were called).
Ashigaru were equipped with a pair of them, katana & wakizashi, as can be seen in period artwork:
http://upload.wikimedia.org/wikipedia/commons/1/18/The_Siege_of_Osaka_Castle.jpg and yes, they wear the katana with the sharp edge facing downwards, that's what they did at the time.
Tuidjy 说:
I found plenty of references about mass-produced katanas much later, and plenty of references about 16th century long swords being too expensive anyway for anyone to try to do anything but his best to produce one. After reading all this, I am thinking that even having massed elite ashigaru with a wakizashi each is a bit too much.
You've been misinformed, not all smiths always put in all of their best efford to produce a sword, many sue koto blades (15th & 16th Centuries Sengoku jidai blades) show signs of the great workload smiths had at the time of the Sengoku jidai, they look somewhat lacklustre and they occasionally have small openings in the blade or have a small section of of the sharp edge remain unhardened.
The quality of swords varied greatly, kazuuchi mono were typically of single piece construction, their course surface steel indicates a low number of folds, it looks similar to the core steel of better blades, so I suspect that they were folded about 5 to 7 times (cores were folded that many times), instead of 15 times as with better blades.
Tuidjy 说:
Is there anyone reading this who actually knows something about the cost and quality of katanas in the period portrayed in Gekokujo? How common were bad steel, one piece, barely folded, single quenched, not heat treated pieces of **** in a long sword form? And frankly why would you bother?
So many questions at once...
I have once come across a highly valued katana that still had an antique appraisal paper with it, if I recall correctly it had a price tag of about 520.000 mon (4000 mon is one koku, enough to live for a year).
If I compare this to appraisals of the beginning of the Meiji-jidai, a low quality sword would be about 5% of that or so... I realize that this is a bit vague, but it's all I got right now.
Mind you that the steel was actually not bad at all, it can compete with modern homogeneous steel, but the steel used for kuzuuchi mono would be the same as that was used for knives, so it wasn't the best of the bloom, but it's still quite good, it wasn't plagued by many large slag inclusions as seen in antique European blades (slag makes blades brittle, modern blades do not suffer from this).
Kazuuchi mono were mostly made by apprentices, while the master focussed on the expensive high end orders, a good quality blade of the Soshu tradition could be made of as much as seven separately folded pieces of steel, with most of those pieces having different carbon percentages for extra durability.
People would bother with making kazuuchi mono because they were faster to make, and they were cheaper, that made them perfect for ashigaru.
Tuidjy 说:
Until I see a link to something saying that ****ty katanas existed beyond failed attempts to make a good one, I will refrain from commenting on this.
Use Google books, search for "The connoisseur's book of japanese swords kazuuchi mono" (page 186).
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By the way, elite ashigaru is an oxymoron, they were common soldiers, the polar opposite of elite.