Sure, and actually not mine. Just one at auction where the koshirae caught my eye so I picked as an example to see what I could learn about it.
To my eye, it looks like someone polished in a non traditional manner and obscured the hamon.
I'm using this to better educate myself, so much appreciate any observations - good, bad, ugly!
https://www.liveauctioneers.com/item/120144308_japanese-antique-samurai-sword-signed-w-stand