Got another blade here. I think this one is mid-1800's but I am unsure. I'd love a translation of the smith and what I believe to be the date? The nakago is really slender compared to the guntos I have, so I think this one is earlier. It appears to be o-suriage as it has an area that clearly was where the habaki was lower. It has three mekugi-ana though, which are all clustered rather closely together. The current habaki has been somewhat butchered sadly and is missing the 'flanges' that flank either side of the blade. Sadly, much of the geometry is eroded but there is definitely enough meat there to have it polished and brought back... if it's worthy of that luxury.
If you want pictures of the rest of the blade, feel free to ask! It does have a shirasaya so there's no worry for that. The blade-edge measures approx. 25 1/2 inches.
P.S. I apologize for my still-amateur photography skills.