Here is a Beautiful, pristine 1986 DONRUSS #597 Ray Knight GEM MT PSA 10 card. It doesn't get better than this.

Certification taken from the PSA/DNA Website:

PSA Certification #19256879

According to the PSA database, the requested certification number is defined as the following:

ITEM INFORMATION

Certification Number19256879
Reverse Cert Number/BarcodeNo
Year1986
BrandDONRUSS
SportBASEBALL CARDS
Card Number597
PlayerRAY KNIGHT
Variety/Pedigree
GradeGEM MT 10