I've been busy (re) shooting stuff, and here's another new piece you might find interesting.
the piece is made from brass (obviously), and measures 78.5mm (H) X 74.3mm (W) X 3.68mm (T, web, measured at nakago ana), 5.59mm (T, max). The surface treatment on the web appears to be irregular sized nananko.
The piece has old T.K. papers to tachishi, though I still don't have a good feeling for what the actual distinction is between the tachi-shi bin and the tachi-kanagu-shi bin - the books say the tachishi guy did the prep work for the tachi-kanagu-shi tsuba maker, but both also just made pieces - whaaaaat?.......
Anyway, I'd guess its Momoyama to early edo period work, but what do I know....