1975 Kellogg's Willie Montanez #31
1975
See all Willie Montanez cards & values1975 seasonPhiladelphia PhilliesSan Francisco GiantsWillie Montanez career & card values
$5.95est. value (ungraded)
Prices updated 2026-10-22
Based on recorded sold prices how we price cards
Price by month
Average price of the 1975 Kellogg's Willie Montanez #31 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 | $5.95 | — |
Willie Montanez prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $5.95 | Buy on eBay ↗ |
| PSA 8 | $41.06 | Buy on eBay ↗ |
| PSA 9 | $45.00 | Buy on eBay ↗ |
| Grade 9.5 | $65.00 | Buy on eBay ↗ |
| PSA 10 | $65.94 | Buy on eBay ↗ |
| BGS 10 | $86.00 | Buy on eBay ↗ |
| CGC 10 | $40.00 | Buy on eBay ↗ |
| SGC 10 | $40.00 | Buy on eBay ↗ |
Live on eBay
Affiliate — we may earn a commission1975 Kellogg's Willie Montanez #31 value & prices
The 1975 Kellogg's Willie Montanez #31 is a Baseball card released in 1975. Ungraded copies carry a market value of about $5.95.
An ungraded copy is worth around $5.95, a PSA 9 around $45.00, a PSA 10 (Gem Mint) around $65.94 and a pristine BGS 10 around $86.00. That's roughly a 11× 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 $5.95 and top grades reaching $65.94, 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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