Impostor Professor Oak Base Set 1st Edition 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 2021 – May 2026.
Recent Gem Mint Sales
| Date Sold | Price | Grade | Source | Listing |
|---|---|---|---|---|
| 2025-11-02 | $108 | CGC 10 | eBay | IMPOSTER PROFESSOR OAK BASE SET – 1ST EDITION 73/102 POKEMON CGC 10 |
| 2025-10-02 | $1,495 | PSA 10 | eBay | Pokemon PSA 10 GEM MINT Imposter Professor Oak 1st Edition Base Set Rare Card 73 |
| 2025-09-05 | $900 | PSA 10 | eBay | Pokemon Imposter Professor Oak 1st Edition Shadowless Base Set Rare 73 Psa 10 #73 |
| 2025-04-22 | $1,000 | PSA 10 | eBay | Pokemon PSA 10 GEM MINT Imposter Professor Oak 1st Edition Base Set Rare Card 73 |
| 2024-12-10 | $380 | PSA 10 | eBay | Pokemon PSA 10 GEM MINT Imposter Professor Oak 1st Edition Base Set Rare Card 73 |
| 2024-06-04 | $305 | PSA 10 | eBay | ***PSA 10 Imposter Professor Oak Base Set Shadowless 1st Edition 1999*** Pokemon |
| 2023-12-24 | $325 | PSA 10 | eBay | 1999 Pokemon Imposter Professor Oak 73/102 1st Edition Base Set PSA 10 Gem Mint #73 |
| 2023-11-05 | $270 | PSA 10 | eBay | 1999 Pokemon Base Set Shadowless Imposter Professor Oak 1st Edition PSA 10 #73 |
| 2023-06-16 | $800 | PSA 10 | eBay | PSA 10 GEM MINT 1999 Pokemon Game 1st Edition Base Set Imposter Professor Oak 73 |
| 2023-01-30 | $294 | PSA 10 | eBay | PSA 10 GEM MINT 1st Edition Imposter Professor Oak 1999 Pokemon Base Set 73/102 |
| 2022-08-27 | $385 | PSA 10 | eBay | IMPOSTER PROFESSOR OAK 1999 Pokemon Base Set 1ST EDITION SHADOWLESS #73 PSA 10 |
| 2022-04-15 | $112 | PSA 10 | eBay | Pokemon Imposter Professor Oak 73/102 1st Edition Base Set PSA 10 1999 |
| 2022-01-19 | $329 | PSA 10 | eBay | Imposter Professor Oak PSA 10 First Edition Pokemon Card Game #73 |
| 2021-10-24 | $238 | PSA 10 | eBay | Pokemon Imposter Professor Oak 73/102 1st Edition Base Set PSA 10 1999 |
| 2021-02-14 | $340 | PSA 10 | eBay | Pokemon 1st Edition Base Set Imposter Professor Oak 73/102 Rare PSA 10 1999 WOTC |
| 2021-01-04 | $1,050 | PSA 10 | eBay | Pokemon Imposter Professor Oak 73/102 1st Edition Base Set PSA 10 1999 |
| 2021-01-01 | $1,000 | PSA 10 | eBay | Pokemon Imposter Professor Oak 73/102 1st Edition Base Set PSA 10 1999 |
17 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 1st Edition)
Trainer from the original Base Set. Impostor Professor Oak (#73).
The Base Set 1st Edition print is the rarest variant. It carries the “Edition 1” stamp on the lower-left of the artwork and uses the shadowless border. WotC printed 1st Edition copies for only the first few weeks of the 1999 U.S. release.
How to identify a 1st Edition Impostor Professor Oak:
- “Edition 1” stamp on the lower-left of the artwork box
- No drop-shadow on the artwork box (“shadowless”)
- WotC copyright at the bottom
- 1999 copyright date
Related Pages
FAQ
- How much is a PSA 10 Impostor Professor Oak Base Set 1st Edition worth?
- As of May 2026, the monthly average sold price is $930. Individual sales over the last several months ranged from $112 to $1,495. Prices are volatile — check the chart above for the latest trajectory.
- How do I tell if my Impostor Professor Oak is a 1st Edition?
- Look for the markers listed in the identification section above. The key distinguishing features for the 1st Edition variant are: “edition 1” stamp on the lower-left of the artwork box, no drop-shadow on the artwork box (“shadowless”).
- 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 2026-05-25.
Price data sourced from the price guide. Last updated 2026-05-25. This page is informational only and is not investment advice. Card image courtesy of the Pokemon TCG API.