1998 Finest Mystery K. Griffey Jr. , M. McGwire #M6
1998
See all K. Griffey Jr. , M. McGwire cards & values$12.99est. value (ungraded)
Prices updated 2026-10-22
Based on recorded sold prices how we price cards
Price by month
Average price of the 1998 Finest Mystery K. Griffey Jr. , M. McGwire #M6 each month, from 1 recorded price reading. Prices are re-checked regularly; a month's average counts each day from that month's first reading at the price that held that day.
| Month | Source | Average | Range |
|---|---|---|---|
| Oct 2026 | Market value | $12.99 | — |
K. Griffey Jr. , M. McGwire prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $12.99 | Buy on eBay ↗ |
| PSA 9 | $27.03 | Buy on eBay ↗ |
| Grade 9.5 | $30.00 | Buy on eBay ↗ |
Live on eBay
Affiliate — we may earn a commission1998 Finest Mystery K. Griffey Jr. , M. McGwire #M6 value & prices
The 1998 Finest Mystery K. Griffey Jr. , M. McGwire #M6 is a Baseball card released in 1998. Ungraded copies carry a market value of about $12.99.
An ungraded copy is worth around $12.99 and a PSA 9 around $27.03.
Is it worth grading?
The spread between raw ($12.99) and top-graded ($27.03) copies is fairly tight, so grading this card only makes financial sense for truly flawless copies — or for collectors who simply prefer slabbed cards for protection and display.
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