Professor's Research
| ebay.nl | n=4 | £2.43 | +46% |
| ebay.es | n=30 | £2.42 | +46% |
| ebay.fr | n=6 | £2.36 | +42% |
| ebay.co.uk | n=12 | £1.88 | +13% |
| ebay.de | n=47 | £1.72 | +4% |
| ebay.com | n=75 | £1.66 | — |
How is this value calculated?
Recency-weighted trimmed median of 61 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 | 60 | 10 d | £2.18 | 489.8 |
| eigene LP-Verkäufe ÷ 0.9329 | 4 | 3 mo | £1.98 | 4.48 |
| eigene PSA10-Verkäufe ÷ 13.4985 | 3 | 5 mo | £2.17 | 0.2 |
| de roh NM × 1.2561 (Sprach-Faktor aus 73 Karten) | 5 | 9 d | £1.61 | 2.45 |
| fr roh NM × 0.8766 (Sprach-Faktor aus 59 Karten) | 4 | 4 mo | £0.41 | 2.18 |
Measured error for this era×language (backtest): ±16 %
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| eigene rohe NM-Verkäufe | 5 | 9 d | £1.28 | 40.82 |
| en roh NM × 0.7961 (Sprach-Faktor aus 73 Karten) | 60 | 10 d | £1.73 | 2.6 |
| fr roh NM × 0.6227 (Sprach-Faktor aus 57 Karten) | 4 | 4 mo | £0.29 | 2.4 |
Measured error for this era×language (backtest): ±19 %
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| eigene rohe NM-Verkäufe | 4 | 4 mo | £0.46 | 32.65 |
| de roh NM × 1.606 (Sprach-Faktor aus 57 Karten) | 5 | 9 d | £2.06 | 3.11 |
| en roh NM × 1.1407 (Sprach-Faktor aus 59 Karten) | 60 | 10 d | £2.48 | 2.31 |
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 × 1.1617 (Sprach-Faktor aus 47 Karten) | 60 | 10 d | £2.53 | 8.7 |
| fr roh NM × 0.8915 (Sprach-Faktor aus 39 Karten) | 4 | 4 mo | £0.41 | 1.99 |
| de roh NM × 1.4353 (Sprach-Faktor aus 44 Karten) | 5 | 9 d | £1.84 | 1.96 |
Measured error for this era×language (backtest): ±17 %
No PSA numbers for this print yet — in any language.
#232 · UR
#236 · UR
#229 · UR
#237 · UR
#230 · UR
#242 · UR
#233 · UR
#226 · UR
#231 · UR
#227 · UR
#235 · UR
#240 · UR
#234 · UR
#239 · UR
#084 · SEC
#078 · UR
#240 · UR
#150 · UR
#SWSH152
#222
#SWSH178
#223
#122 · C
#125 · C
#085 · U
#123 · C
#147 · RH
#221
#189 · R
#088 · HR
#087 · HR
#155 · C
#190 · R
#124 · C
Frequently asked questions
Auction or Buy It Now — which gets more for Professor's Research Scarlet & Violet 241/198?
Across 33 auctions the median was £1.00, across 83 fixed-price sales £2.18. Fixed price therefore fetched about 119 % more — for this card patience with a set price is the better route.
What will I get for Professor's Research Scarlet & Violet 241/198 if I want to sell quickly?
Half of all sales fell between £1.47 and £2.62, with a median of £1.81. 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 241/198 unrealistic?
The cheapest genuine sales were around £0.78. Offers well below £0.47 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.