chop mark identification

[centaura]

I am looking for any resources for identifying chop marks. I've found bonsaipotplaza.com, and the tokoname english website. I also have Bonsai Techniques II and an old Tokoname catalog from the 80's. Does anyone know of any other sources for identifying chop marks?

Also, is anyone familiar with the website bonsaipotplaza.com? I had a few questions for them, but their email bounces back. Was curious if anyone might know who was behind the site, or if they had any contact info.

Thanks,

-Cat