(The following was recovered from Web.Archive.org and was originally posted on tsarchive.net.)

Transformers Case Assortments

20th Anniversary: Series 1 (2004)

Assortment a (#80500.0900) PK 2=> February 2004
 80500 2  *Optimus Prime (version 1)

Assortment b (#80500.0000) PK 2=> February 2004 - Present
 80500 2  Optimus Prime (version 2)

Assortment c w/poster, Wal-Mart Exclusive (#80500.0450) PK 2=> February 2004 - March 2004
 80500 2  Optimus Prime (version 2)