Search:

I would not look forward to straightening a kamisori but possibly, bending it as they do with knives & swords, may be safer than tapping with a mallet ?
I was thinking a miniature version of the...

Yes that's the one. As with western razors where the edge will follow the spine these are meant to be straight on kamisori. I haven't seen any smiling kamisori newly made.
The grind also needs to...

I see where you're coming from Mike, which is a more in depth look than I was seeing. :) Very interesting how many planes are involved but I was simply referring to the contact point where the hone...

I'd say that's a distinct possibility Mike yet I'm surprised that even a partial grind would curve like that. Atypical of what I would expect from a Japanese forge. You see plenty like that on eBay...

How do I put this politely ? :) The geometry of this razor is wrong. Sorry.

The ridge should actually be a straight line which in turn would give you a straight edge.
Someone has 'restored' ...

As Mainaman hinted the other side of the razor has the hard steel.

Just FYI Tamahagane does not always show a wavy grain pattern. There is also nashiji-hada which looks like this Iwasaki western...