Professor's Research · Pokémon Center
Origin: Pokémon GO 5th anniversary and Pokémon TCG 25th anniversary / Pokémon GO V Battle Deck—Mewtwo vs. Melmetal · Product insert · Pokémon GO
Market price
£6.23
based on 1 sales
How is this value calculated?
Ladder estimate · English
· ~£1.32
gruen
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| eigene rohe NM-Verkäufe | 68 | 9 d | £1.32 | 555.1 |
| eigene LP-Verkäufe ÷ 0.8625 | 12 | 11 d | £0.86 | 3.66 |
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £1.32 · Σ g = 558.76
Measured error for this era×language (backtest): ±17 %
Ladder estimate · Deutsch
· ~£1.41
gruen
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 1.068 (Sprach-Faktor aus 150 Karten) | 68 | 9 d | £1.41 | 1.28 |
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £1.41 · Σ g = 1.28
Measured error for this era×language (backtest): ±22 %
Ladder estimate · Français
· ~£1.39
gelb
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 1.0528 (Sprach-Faktor aus 74 Karten) | 68 | 9 d | £1.39 | 3.51 |
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £1.39 · Σ g = 3.51
Measured error for this era×language (backtest): ±20 %
Gate not green — shown only here, never as the price.
Ladder estimate · Italiano
· ~£1.51
gruen
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 1.1421 (Sprach-Faktor aus 150 Karten) | 68 | 9 d | £1.51 | 3.82 |
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £1.51 · Σ g = 3.82
Measured error for this era×language (backtest): ±18 %
PSA Population
No PSA numbers for this print yet — in any language.
Recent sales · 1
| 2026-10-07 | EN | RAW NM | **Sealed** Pokemon Center Exclusive Professor's Research SWS · eBay | £6.23 |
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FAQ
Frequently asked questions
How does Last Sold determine the market value?
Last Sold uses only real sales — eBay plus auction houses like Goldin & Fanatics — recent sales count more (recency weighting), outliers and fakes are removed. It's not an estimate but actual sold prices, separated by condition, language and grading.
Professor's Research · Pokémon Center SWSH Black Star Promos · SWSH178/307