From Zappa Wiki Jawaka
Bleecker Bob's second hand record shop in New York.
Dr Demento: "Frank, your record collection goes back to the '50s, but are you still actively collecting records?"
FZ: "I don't actually go out and scoop them up. Well, every once in a while I go to a store and I buy some, but a lot of times people send me things, and some of them are really good and some of them are absolutely disgusting. And then there's this guy in New York that you might know, Bleecker Bob, who occasionally gives me piles of stuff...'50s and new wave...whenever I go to New York. So I manage to keep on top of whatever has been released."
(Quoted from Dr. Demento's interview with Zappa).