1979 Kellogg's Bill Bonham #31
1979
See all Bill Bonham cards & values$1.87est. value (ungraded)
Prices updated 2026-10-22
Based on recorded sold prices how we price cards
Price by month
Average price of the 1979 Kellogg's Bill Bonham #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 | $1.87 | — |
Bill Bonham prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $1.87 | Buy on eBay ↗ |
| PSA 8 | $14.21 | Buy on eBay ↗ |
| PSA 9 | $14.63 | Buy on eBay ↗ |
| Grade 9.5 | $59.18 | Buy on eBay ↗ |
| PSA 10 | $175.50 | Buy on eBay ↗ |
| BGS 10 | $228.00 | Buy on eBay ↗ |
| CGC 10 | $105.00 | Buy on eBay ↗ |
| SGC 10 | $105.00 | Buy on eBay ↗ |
Live on eBay
Affiliate — we may earn a commission1979 Kellogg's Bill Bonham #31 value & prices
The 1979 Kellogg's Bill Bonham #31 is a Baseball card released in 1979. Ungraded copies carry a market value of about $1.87.
An ungraded copy is worth around $1.87, a PSA 9 around $14.63, a PSA 10 (Gem Mint) around $175.50 and a pristine BGS 10 around $228.00. That's roughly a 94× 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 $1.87 and top grades reaching $175.50, 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.