I was wondering when the early Serge modulars were made, an artist put out a CD (excellent by the way) cliaming to have a 1972 Serge modular. As far as I can tell they came into existence around 1975.
http://bleep.com/index.php?page=release_details&releaseid=18286
http://www.myspace.com/twentysystems
http://bleep.com/index.php?page=release_details&releaseid=18286
http://www.myspace.com/twentysystems