OK. This is a tough one.
The rarest signed Bukowski book was not published by Black Sparrow Press. In fact, there were only 26 hardover, signed copies issued and they were signed by all contributors. There was also a wraps edition, and I do now know the limitation on that one. Name the book title or the publisher. I owned a copy once, but they are SOOO rare. None on abe, and I believe that I sold mine for about $1500 5 or 6 years ago.
HINT: The answer is NOT Bottle of Smoke Press....
Bill
p.s. Of course, I'm not talking about any of those early overrun copies like "Signature". This book was published many, many years later.