Professor's Research

SVP Black Star Promos · 223/225

Illustration: Taira Akitsu →

Professor Program €30,24 3 sales Normal €1,78 5 sales

Market price

€1,78

Price history · RAW

2026-06-12 · €0,62 €3,49 · 2026-07-13

Price per print

🇬🇧 Normal · EN n=4 €1,78

How is this value calculated?

Ladder estimate · English · ~€1,78 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
eigene rohe NM-Verkäufe	3	43 d	€1,78	24.49

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = €1,78 · Σ g = 24.49

Measured error for this era×language (backtest): ±16 %

Ladder estimate · Deutsch · ~€1,72 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 0.9669 (Sprach-Faktor aus 110 Karten)	3	43 d	€1,72	3.12

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = €1,72 · Σ g = 3.12

Measured error for this era×language (backtest): ±19 %

Ladder estimate · Français · ~€2,39 gelb

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 1.3415 (Sprach-Faktor aus 54 Karten)	3	43 d	€2,39	1.67

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = €2,39 · Σ g = 1.67

Measured error for this era×language (backtest): ±25 %

Gate not green — shown only here, never as the price.

Ladder estimate · Italiano · ~€1,98 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 1.1128 (Sprach-Faktor aus 28 Karten)	3	43 d	€1,98	4.35

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = €1,98 · Σ g = 4.35

Measured error for this era×language (backtest): ±17 %

PSA Population EN Σ 1

PSA 9

1 100%

PSA · Professor Program · as of 2026-08-13

Recent sales · 5

2026-07-13	EN	RAW NM	Pokémon TCG Professor's Research SVP 223 Scarlet & Violet Bl	€0,62
2026-07-10	EN	RAW UNKNOWN	Pokemon - Professor's Research (Magnolia) - SVP223 - SV Prom	€3,49
2026-07-05	EN	RAW NM	TTK25 Pokemon SVP Set - Professor's Research & Black Belt's	€3,48
2026-06-16	UNKNOWN	RAW UNKNOWN	Forschung des Professors Prof. Magnolia SVP 223 Pokémon Prom	€1,00
2026-06-12	EN	RAW UNKNOWN	Professor's Research SVP 223	€1,72

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FAQ

Frequently asked questions

How does lastsold determine the market value?

lastsold 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.