Ruben Sierra Error Cards
2 documented Ruben Sierra error and variation cards.
| Image | Set | # | Var. | Details | eBay® |
|---|---|---|---|---|---|
| 1990 Donruss | 3 | a | No vertical black line at top right on back | Find 1990 Donruss Ruben Sierra on eBay eBay | |
| 1990 Donruss | 3 | b | Vertical line at top right on back | Find 1990 Donruss Ruben Sierra on eBay eBay |