The owner sent me these links just now: - https://books.google.com/books?id=0DAEAAAAMBAJ&pg=PA21&lpg=PA21&dq=counterpo... - https://books.google.com/books?id=vrrvpxLbx7UC&pg=PA23&lpg=PA23&dq=counterpo... - https://groups.google.com/forum/#!search/counterpoint$20computers$20inc./net... <https://groups.google.com/forum/#%21search/counterpoint$20computers$20inc./net.unix-wizards/14hFju53U8k/Av_szmvBH3oJ> - It looks llike Acer may have bought Counterpoint Computers Inc after C-XIX failed to launch in 86-87 timeframe: https://books.google.com/books?id=uaik0Y8QKcYC&pg=PP41&lpg=PP41&dq=counterpo... - Bottom of page 92: https://www.computer.org/csdl/mags/co/1986/05/01663233.pdf . As I recall, the system had X 10R3 or R4 on it, which puts it around 86-87, before X11 in 88-89.