Jerry Koosman 1977 Topps Baseball #300
Topps Baseball 1977 · #300 · updated 2026-11-03
| Price | 30d | 1y | |
|---|---|---|---|
| PSA 10 most traded | $140 | — | — |
| PSA 9 | $50.00 | — | — |
| Baseball index | — | ▼3% | ▲59% |
| Topps Baseball set index | — | ▲1% | ▲30% |
| Grade | Price | 30d | 1y |
|---|---|---|---|
| PSA 10 | $140 | 1 | — |
| PSA 9 | $50.00 | 1 | — |
| PSA 8 | $19.99 | 0 | — |
| PSA 7 | $7.33 | 0 | — |
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About Jerry Koosman 1977 Topps Baseball #300
Jerry Koosman 1977 Topps Baseball #300 is a 1977 Pokémon card from Topps Baseball, number 300. Right now a PSA 10 sells for about $140; a PSA 9 sells for about $50.00; a PSA 8 sells for about $19.99, each the median of the newest three recorded sales inside 30 days.
We hold 37 recorded sales of this card going back to 2023-11, 2 of them in the last 30 days. By venue: eBay 97%, Fanatics 3%. The most traded grade over the last 90 days is PSA 10.
PSA has graded 19 copies at PSA 10 and PSA 9 53. Population as of 2026-10-25, from PSA's cert records.
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Jerry Koosman 1977 Topps Baseball #300 questions
How much is a Jerry Koosman 1977 Topps Baseball #300 worth?
About $140 in PSA 10, the most traded grade. Prices are the median of the newest three recorded sales inside 30 days.
How much is a PSA 10 Jerry Koosman 1977 Topps Baseball #300?
About $140, 1 PSA 10 sales in the last 30 days. PSA has graded 19 copies at 10.
What is the PSA 10 premium on Jerry Koosman 1977 Topps Baseball #300?
A PSA 10 sells for 2.8x a PSA 9 right now ($140 against $50.00).
Where can I buy a Jerry Koosman 1977 Topps Baseball #300?
The Deals section on this page lists every auction of this card ending inside 24 hours and every Buy It Now the deal finder is pricing, each against the comp for its grade. Tap one to open it on eBay, or open the deal finder for every card.
What is the PSA population of Jerry Koosman 1977 Topps Baseball #300?
PSA 10: 19; PSA 9: 53. As of 2026-10-25.