How can I tell the difference between a 1994 Buick Century Custom and Special, or Limited?

I recently got a 1994 Buick Century from my brother and I'm trying to buy insurance. The insurance company wants me to specify whether it's a Custom, Special, or Limited. How can I tell the difference? The Owner's Manual doesn't say. I contacted Buick but they haven't reply. I searched for image online but they looked similar that I can't really tell which one mine is. I'm stuck. Any car experts out there? Please help me.|||go to CARFAX.COM punch in the VIN and it should tell you for free.|||If it is a Limited it should have emblems under the Century nameplate.Pillowed seats and nicer interior are Limited features too.