I need y'all's help on a project
 

I am looking for access to an older Chinese Butterfly Sword. (Please bear with me if I use the wrong name. It's out of my area).
I collect Confederate bowie knives and about 4 years ago I wrote "The Confederate Bowie Knife Guide". Besides discussing real Reb knives, I also told how to spot fakes and how to identify old knives that are sometimes mislabled as Confederate. In this area, I covered the Philippine D-guard, the Mexican Espata Ancha and the Chinese Butterfly Sword. Even though my descriptions were fairly adequate, it fell short of the desired effect as I didn't have any pics of these knives.
I have decided to redo the book and add probably 100+ pages. Besides an expanded Confederate section, I am planning on having probably 20 or so pages dedicated to fakes and misrepresented period knives. I have picked up some Philippine and some Mexican knives, but the Chinese D-guard knife/sword seems to have eluded me.
I would like to buy a Butterfly Sword to use in my book and my show display. Condition is not that important, but I would like one with a wood grip and possibly a nice brown patina. I would rather not go nuts on the price as it is not my area of interest and it is strictly for educational purposes.
If anyone knows of a collector of these types of knives, would you please forward my contact info to them. I would greatly appreciate it.
Thanks,
Lee Hadaway
Trinidad, Colorado
georgiabowie@msn.com
719-680-1255