1998 SP Authentic Chirography Mike Mussina #MM
1998
See all Mike Mussina cards & values1998 seasonBaltimore OriolesMike Mussina career & card values
$21.39est. value (ungraded)
Prices updated 2026-10-22
Based on recorded sold prices how we price cards
Price by month
Average price of the 1998 SP Authentic Chirography Mike Mussina #MM 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 | $21.39 | — |
Mike Mussina prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $21.39 | Buy on eBay ↗ |
| PSA 7 | $10.06 | Buy on eBay ↗ |
| PSA 8 | $49.18 | Buy on eBay ↗ |
| PSA 9 | $99.22 | Buy on eBay ↗ |
| Grade 9.5 | $159.88 | Buy on eBay ↗ |
| PSA 10 | $537.06 | Buy on eBay ↗ |
| BGS 10 | $698.00 | Buy on eBay ↗ |
| CGC 10 | $322.00 | Buy on eBay ↗ |
| SGC 10 | $322.00 | Buy on eBay ↗ |
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Affiliate — we may earn a commission1998 SP Authentic Chirography Mike Mussina #MM value & prices
The 1998 SP Authentic Chirography Mike Mussina #MM is a Baseball card released in 1998. Ungraded copies carry a market value of about $21.39.
An ungraded copy is worth around $21.39, a PSA 9 around $99.22, a PSA 10 (Gem Mint) around $537.06 and a pristine BGS 10 around $698.00. That's roughly a 25× premium for a gem-mint copy over raw — one of the clearest signals that condition-sensitive buyers dominate this card's market.
Is it worth grading?
With raw copies near $21.39 and top grades reaching $537.06, grading a sharp copy of this card can clearly pay for itself — the spread comfortably covers a typical ~$25.00 grading fee. The catch: only submit copies with strong centering, clean corners, and unmarked surfaces, because anything below a 9 usually erases the math.
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