WA97 is designed to study strange and multi-strange baryon and anti-ba
ryon production in 160 A GeV/c Ph-Ph collisions at the SPS with a tele
scope of silicon microdetectors. Four planes of silicon pixel detector
s were successfully employed during the 1994 Pb run. A total of 60M ce
ntral Pb-Pb events were collected. We describe the experimental setup
and report on some preliminary results from the off-line analysis.