According to the PSA database, the requested certification number is defined as the following:
#21501138
1991 DONRUSS GRAND SLAMMERS #11 MARK McGWIRE GRAND SLAMMERS
Item Grade
GEM MT 10
Item Information
- Cert Number
- 21501138
- Item Grade
- GEM MT 10
- Reverse Cert/Barcode
- No
- Year
- 1991
- Brand/Title
- DONRUSS GRAND SLAMMERS
- Subject
- MARK McGWIRE
- Card Number
- 11
- Category
- BASEBALL CARDS
- Variety/Pedigree
- GRAND SLAMMERS
Set Registry
This cert does not appear in any sets.
Note: If you believe the label on your cert or the item information listed above appears to be incorrect, please file a Label Correction Request through the Customer Request Center.




