| Set | Base |
| Card number | 73 |
| Rarity | rare |
| Type | Trainer |
| HP | 0 |
| Artist | Ken Sugimori |
| Released | Jan 1999 |
Impostor Professor Oak #73 Value (Base)
Pokemon card price guide: raw and graded values, eBay sold prices and price history. Updated Sep 17, 2026.
Impostor Professor Oak #73 is a rare card from the Base set of the Pokémon trading card game, illustrated by Ken Sugimori. Its value is driven by its rarity, unique artwork, and position in a highly sought-after set. This card is considered one of the most expensive cards in the Base set.
Current prices
| Source | Price |
|---|---|
| TCGplayer market price (USD) | $4.83 |
| TCGplayer mid price (USD) | $4.31 |
| Cardmarket lowest near mint (EUR) | €115.00 |
| Cardmarket 7-day average (EUR) | €37.83 |
| Cardmarket 30-day average (EUR) | €31.46 |
| Cardmarket listings available | 17 |
| eBay PSA 10 median (USD) | $824.85 |
Buy / compare: TCGplayer · eBay · eBay sold · Cardmarket
Scan this card with the trading card value to track its value in your collection.
Graded card values (PSA, CGC, BGS)
| Grading | Grade | Median sold | Sales |
|---|---|---|---|
| CGC | 10 | $28.50 | 2 |
| CGC | 8 | $32.74 | 2 |
| PSA | 10 | $824.85 | 4 |
| PSA | 9 | $54.35 | 5 |
| PSA | 8 | $79.16 | 5 |
| PSA | 7 | $56.84 | 2 |
Graded values are medians of real eBay sold listings.
Impostor Professor Oak price history
| Month | Avg Cardmarket low | Avg TCGplayer market |
|---|---|---|
| Sep 2026 | €115.00 | $4.91 |
| Aug 2026 | €115.73 | $4.90 |
| Jul 2026 | €132.35 | $5.39 |
| Jun 2026 | €41.98 | $4.68 |
| May 2026 | €73.00 | $4.68 |
| Apr 2026 | €59.00 | $4.68 |
| Mar 2026 | €51.67 | $4.88 |
| Feb 2026 | €45.00 | $4.46 |
Frequently asked questions
How much is Impostor Professor Oak #73 worth?
How much is Impostor Professor Oak #73 worth? As of Sep 17, 2026, a raw near mint copy is worth about $4.83, a PSA 10 sells for around $824.85 on eBay, the Cardmarket low is €115.00. Prices update daily from Cardmarket, TCGplayer and eBay sold listings.
What is Impostor Professor Oak #73 worth?
How much is Impostor Professor Oak #73 worth? As of Sep 17, 2026, a raw near mint copy is worth about $4.83, a PSA 10 sells for around $824.85 on eBay, the Cardmarket low is €115.00. Prices update daily from Cardmarket, TCGplayer and eBay sold listings.
What is a PSA 10 Impostor Professor Oak #73 worth?
As of Sep 17, 2026, a PSA 10 Impostor Professor Oak #73 sells for about $824.85 on eBay (median of recent graded sales), compared with about $4.83 for a raw near mint copy.
How can I identify Impostor Professor Oak #73 with my phone?
Download the free TCGApp.io app (Card Value Scanner) on iPhone, point the camera at the card, and it matches Impostor Professor Oak #73 from Base in seconds, then shows live prices, PSA graded values and eBay sold comps.
How do I track the value of Impostor Professor Oak #73 in a collection?
Add Impostor Professor Oak #73 to your collection in the TCGApp.io app to see portfolio value, profit and loss, price history and alerts when the card moves. You can also export CSV/JSON and add a Home Screen widget.
What advice do you have for buying this card?
When purchasing Impostor Professor Oak #73, ensure you buy from reputable sellers and consider the card's condition and grading status.
Should I get this card graded?
Grading can make sense for this card, especially if you believe it can achieve a high grade, as the market shows significant premiums for graded versions.
Why is Impostor Professor Oak #73 valuable or notable?
The card is valuable due to its rarity, iconic artwork, and its status within the Base set, which has a strong collector following.
Most valuable cards in Base
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