I just bought a Rossin Pista from my friend for cheap and the serial number is on the dropout. (Which tells me it could be an earlier model.) It's in pretty rough shape (will need a resto in the future) and the serial number looks slightly erased because the dropout is chewed up. Looks like a "1" might have been slightly erased but it mostly reads "SD34". I may have just bought the roughest Rossin Pista in the world but I got it for $50AUD and I'm stoked on it. Its gonna be mint when it's done.
by ToasterBath500