PSA 10 / PSA 9 (avg.) / Raw ungraded near-mint / Sealed product. Live snapshot from verified sold listings across major marketplaces and auction houses.
Impostor Professor Oak Base Set Shadowless PSA 10 Price History
Live PSA 10 Gem Mint price tracking for the 1999 Pokemon Base Set Impostor Professor Oak (#73). Data sourced from eBay, Goldin, and Fanatics Collect via the price guide.
Compare Impostor Professor Oak Variants
Impostor Professor Oak was printed across multiple Base Set variants. Click any variant above to view its price history.
PSA 10 Monthly Price History
Monthly average PSA 10 Gem Mint price for the 1999 Pokemon Base Set Impostor Professor Oak (#73). Data covers Jan 2023 – Aug 2026.
Recent Gem Mint Sales
| Date Sold | Price | Grade | Source | Listing |
|---|---|---|---|---|
| 2026-07-09 | $334 | PSA 10 | eBay | POKEMON BASE SET IMPOSTOR PROF. OAK 1999 #73 SHADOWLESS PSA 10 #73 |
| 2026-07-03 | $480 | PSA 10 | eBay | 1999 Pokemon Base Set 73/102 Shadowless Imposter Professor Oak Edition PSA 10 073/102 |
| 2026-02-12 | $500 | PSA 10 | eBay | 1999 Pokemon Shadowless Imposter Professor Oak Trainer PSA 10 Gem Mint Base Set 073/102 |
| 2025-07-30 | $495 | PSA 10 | eBay | PSA 10 – Pokemon IMPOSTOR PROFESSOR OAK 73/102 – SHADOWLESS BASE SET Trainer 73/102 |
| 2025-02-17 | $56 | CGC 10 | eBay | 1999 Pokemon Base Set Shadowless #73/102 Imposter Professor Oak CGC 10 GEM MINT |
| 2024-07-26 | $200 | PSA 10 | eBay | PSA 10 Imposter Professor Oak Base Set Shadowless 1999 Pokemon 73/102 NOT 1st #102 |
| 2024-07-15 | $200 | PSA 10 | eBay | PSA 10 Imposter Professor Oak Base Set Shadowless 1999 Pokemon 73/102 NOT 1st #102 |
| 2024-01-06 | $225 | PSA 10 | eBay | 1999 Pokemon Base Set Shadowless Imposter Professor Oak 73/102 PSA 10 GEM MINT |
| 2023-12-26 | $100 | PSA 10 | eBay | IMPOSTER PROFESSOR OAK 1999 POKEMON BASE SET SHADOWLESS #73/102 PSA 10 GEM MINT |
| 2023-11-03 | $121 | PSA 10 | eBay | Pokemon Shadowless Base Set Imposter Professor Oak 73/102 PSA 10 |
| 2023-01-08 | $75 | PSA 10 | eBay | 1999 Pokemon Imposter Professor Oak Base Set Shadowless PSA 10 |
| 2022-10-02 | $110 | PSA 10 | eBay | 1999 Pokemon Impostor Professor Oak Base Set Shadowless 73/102 PSA 10 Gem Mint |
10 verified gem-mint sales (PSA 10, CGC 10, BGS 10, and other 10-grade equivalents). PSA 10 carries the highest premium; CGC 10 and BGS 10 typically trade at a slight discount. Prices exclude shipping.
About Impostor Professor Oak (Base Set Shadowless)
Trainer from the original Base Set. Impostor Professor Oak (#73).
Shadowless is the rare transitional variant between 1st Edition and Unlimited. It has no edition stamp AND no drop-shadow border. Printed for only a few weeks in early 1999.
How to identify a Shadowless Impostor Professor Oak:
- No “Edition 1” stamp on the lower-left
- No drop-shadow on the artwork box edges
- Thinner card stock than Unlimited
- Sits between 1st Edition and Unlimited in rarity
Related Pages
FAQ
- How much is a PSA 10 Impostor Professor Oak Base Set Shadowless worth?
- As of Aug 2026, the monthly average sold price is $407. Individual sales over the last several months ranged from $75 to $500. Prices are volatile — check the chart above for the latest trajectory.
- How do I tell if my Impostor Professor Oak is a Shadowless?
- Look for the markers listed in the identification section above. The key distinguishing features for the Shadowless variant are: no “edition 1” stamp on the lower-left, no drop-shadow on the artwork box edges.
- Where does this price data come from?
- All chart data and recent sales are sourced from price guide sites, which aggregates verified sold listings from eBay, TCGPlayer, Goldin, and Fanatics Collect. Last refreshed 2026-08-29.
Price data sourced from the price guide. Last updated 2026-08-29. This page is informational only and is not investment advice. Card image courtesy of the Pokemon TCG API.