Hi Chris,
sorry for the delay in posting, will get pictures of the nakago and post them soon. Meanwhile I have been carefully cleaning the rest of the blade using 1200 /2400 grit paper, which has also improved the sharpness of the edge ( I have literally drawn blood in the pursuit of a cleaner blade

heck of a way to learn to 'focus on the task' ...one lapse of concentration and the blade can 'bite' ....)
In the pursuit of knowledge

I decided to test the blade on some soft targets......one plastic bottle filled with water....which it cut through easily. So then on to 3 bottles in a row ....results below.....

OK doesn't prove the true quality of the blade but learning should have an element of fun...
Kind Regards David