my granddad bought this sword decades ago on a touristic visit to Japan at a market. I remember it when i was younger, we used to play with it and cut objects with it, that's why the Koshirae is ruined and also the blade had to endure a sharpening attempt by my younger brother. Can someone of you give me a very rough estimation what this thing is about? My granddad plans to sell it on the internet, but i told him i would like to check it first. I suppose strongly it's a purely massproduced piece for selling to tourists (he bought it in the 70s), but as i myself have not the slightest idea, it would help me a lot if anyone could tell me his quick opinion. At the moment i can't get the handle off the piece, but i think it won't be neccessary anymore after your first feedback.
I hope you don't see it as an offense to be confronted with such a piece, but i have simply no clue at all & I assume it takes a quick look for you experts. I think for someone with knowledge, already the used materials can give hints.
Cheer and thanks