Lucky you! Seems like you got it for a reasonable price too.
I was at the same fair, looking around. I got some 9x12 film holders for one of my old cameras, and some Efke 100 film. I nearly bought a Pentacon 6, but decided it was a bit large and maybe I wouldn't use it enough. I was just about to leave when I took one last look at a table full of TLRs.
The seller showed me through various cameras, then pulled out a mint Yashica TLR, complete in original box...Ah well, I didn't have a TLR ;-)