1977 Kelloggs Jerry Koosman #29
1977
See all Jerry Koosman cards & values$3.25est. value (ungraded)
Prices updated 2026-10-22
Based on recorded sold prices how we price cards
Price by month
Average price of the 1977 Kelloggs Jerry Koosman #29 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 | $3.25 | — |
Jerry Koosman prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $3.25 | Buy on eBay ↗ |
| PSA 8 | $25.61 | Buy on eBay ↗ |
| PSA 9 | $41.20 | Buy on eBay ↗ |
| Grade 9.5 | $48.00 | Buy on eBay ↗ |
| PSA 10 | $49.00 | Buy on eBay ↗ |
| BGS 10 | $64.00 | Buy on eBay ↗ |
| CGC 10 | $29.00 | Buy on eBay ↗ |
| SGC 10 | $29.00 | Buy on eBay ↗ |
Live on eBay
Affiliate — we may earn a commission1977 Kelloggs Jerry Koosman #29 value & prices
The 1977 Kelloggs Jerry Koosman #29 is a Baseball card released in 1977. Ungraded copies carry a market value of about $3.25.
An ungraded copy is worth around $3.25, a PSA 9 around $41.20, a PSA 10 (Gem Mint) around $49.00 and a pristine BGS 10 around $64.00. That's roughly a 15× 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?
The spread between raw ($3.25) and top-graded ($49.00) 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.