I still use my 1987 onepass card. It's red and white, with the slogan "Travel Rewards Abve and Beyond. On the back it has the old continental logo as well as an eastern airlines logo.

"For Reservations, Call Your Professional Travel Consultant, or
For Continental Reservations, Call Toll-Free 1-800-525-0280
In Alaska, Call Toll-Free 1-800-231-0855
For Eastern Reservations, Call 1-800-EASTERN"

The original OPSC number was 713-952-1630- same as it is now!