Professor's Research
| ebay.es | n=10 | £1.65 | +77% |
| ebay.de | n=7 | £1.32 | +42% |
| ebay.com | n=47 | £1.01 | +9% |
| ebay.co.uk | n=2 | £0.93 | — |
How is this value calculated?
Recency-weighted trimmed median of 14 NM sales (RAW; outliers trimmed against the median, newer sales weigh more, dynamic half-life).
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| eigene rohe NM-Verkäufe | 14 | 22 d | £0.74 | 114.29 |
Measured error for this era×language (backtest): ±16 %
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 0.8851 (Sprach-Faktor aus 74 Karten) | 14 | 22 d | £0.65 | 2.17 |
Measured error for this era×language (backtest): ±19 %
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 1.1488 (Sprach-Faktor aus 63 Karten) | 14 | 22 d | £0.85 | 1.4 |
Measured error for this era×language (backtest): ±25 %
Gate not green — shown only here, never as the price.
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 1.2267 (Sprach-Faktor aus 47 Karten) | 14 | 22 d | £0.90 | 4.63 |
Measured error for this era×language (backtest): ±17 %
No PSA numbers for this print yet — in any language.
#134 · 
#043 · 
#015 · 
#122 · 
#118 · 
#038 · 
#054 · 
#124 · 
#164 · 
#061 · 
#189 · 
#023 · 
#142 · 
#041 · 
#084 · 
#240 · 
#078 · 
#150 · 
#147 · 
#SWSH152
#222
#241 · 
#223
#221
#SWSH178
#085 · 
#125 ·
#189 · 
#155 ·
#123 · 
#087 ·
#122 · 
#124 · 
#088 ·
Frequently asked questions
Auction or Buy It Now — which gets more for Professor's Research Scarlet & Violet 190/198?
Across 8 auctions the median was £0.47, across 30 fixed-price sales £1.16. Fixed price therefore fetched about 146 % more — for this card patience with a set price is the better route.
What will I get for Professor's Research Scarlet & Violet 190/198 if I want to sell quickly?
Half of all sales fell between £0.77 and £1.55, with a median of £1.16. Selling fast lands you nearer the lower end; with patience, good photos and a complete title the upper end is achievable.
Below which price is an offer for Professor's Research Scarlet & Violet 190/198 unrealistic?
The cheapest genuine sales were around £0.51. Offers well below £0.31 are typically fakes, mislabelled cards or a different variant — ask for photos of all four borders and a close-up of the surface.
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.