If you look at the Service Parts Identification tag (either under the center console door or in the passenger side storage compartment, then you can see what was installed at the factory.
All 1993 Corvette's are "Anniversary Editions" in that they represent the 40th anniversary of the car.
However, the RPO Z25 was a special option which included special paint color (Ruby Red), ruby red interior, special emblems, and unique center caps on the wheels. Approximately 6750 Z25 cars (out of a total of 21,800 units). That is an exceptionally pretty color!
Here's a picture of the Service Parts Identifier:
Best of Luck in your pursuit!