Rare Zack Farmer book and paperwork, Field Guide to Mastering Wind Instrument

[Shadowturkeycaller]

I have a better than mint condition copy of Zacks field guide (book) to Mastering the wind instrument.  this is #464 out of 500. it was signed by Mr Farmer to me.  I have never read this book due to not wanting to DAMAGE THE PAGES. I also have the original envelope it came in along with his brochure that came in another envelope. 
From what I understand this is extremely rare.  asking price is $400. Im in no hurry to sell it so I thought I would put it out there if we had any Zack Farmer collectors.


thanks for looking
Gregg Guthridge