Hey, that's a nice piece. The blade looks a lot more refined and graceful that what my mental image of a dadao. I have always wanted a dadao, so let me know if you have another fit of monetary concerns
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Zip actual information for me, too. Hopefully Philip or Scott will help out. They don't pop up here very much anymore, though.
If you haven't already, post something in the Chinese forum on SFI. That's pretty active in this area, so you should at least get a lot of opinions.