The other day I dropped into a used book store in Ojai (Ca) I noticed two  VN items.
 
In particular,a very nice copy of Poems and Problems w/ dust jacket, priced at $50 and a first American edition of Invitation to a Beheading (w/ dust jacket), at, I think, $75. Check with the owner Dave Ray at
DaveRay@adelphia.net or call himat (805) 646-3755.  Mention my name.
 
I know several of you have been looking for P&P.