Older visa stamp

[AB Lo]

I hold a Mexican passport and used to travel a lot to the US, I have a visa stamp which reads "Mexican Border crossing card and B1/B2 no immigrant visa", this was issued in 1989 and doesn't have explicitly any expiry date. Does this type of visas have a default expiry date? I called the USA consulate in Sydney Australia and they were not much of a help, any idea how to verify wether Im still eligible to travel to the US with this visa?

[jnk]

There must be expiration date. Can you please double check?

[bandk]

http://unitedstatesimmigration.info/bcc.html

Last paragraph:
All BCCs issued before April 1, 1998, will expire on September 30, 2001. Congress did not pass legislation to extend the expiration date, therefore these older cards are no longer valid for entry into the United States.
Effective October 1, 2001
Holders of combination B1/B2/BCC visas will be permitted to enter with a valid passport, complete I-94 form and $6.00 I-94 fee. (The BCC portion will no longer be valid after September 30, 2001.) All other holders of old BCCs will be not permitted entry


This is a third party site so double check this info.