Professor's Research
| ebay.fr | n=3 | £6.62 | +138% |
| ebay.co.uk | n=16 | £3.58 | +29% |
| ebay.es | n=41 | £3.55 | +28% |
| ebay.de | n=146 | £3.13 | +13% |
| ebay.com | n=102 | £2.90 | +5% |
| ebay.nl | n=14 | £2.78 | — |
How is this value calculated?
Recency-weighted trimmed median of 114 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 · Set -12% nachgeführt | 115 | 48 d | £2.85 | 938.78 |
| eigene LP-Verkäufe ÷ 0.9299 · Set -12% nachgeführt | 6 | 47 d | £2.85 | 5.97 |
| eigene PSA10-Verkäufe ÷ 11.5063 · Set -12% nachgeführt | 5 | 4 mo | £5.90 | 0.19 |
| de roh NM × 1.1442 (Sprach-Faktor aus 73 Karten) | 10 | 10 d | £2.59 | 4.14 |
Measured error for this era×language (backtest): ±16 %
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| eigene rohe NM-Verkäufe | 10 | 10 d | £2.25 | 81.63 |
| en roh NM × 0.874 (Sprach-Faktor aus 73 Karten) | 115 | 48 d | £2.70 | 5.18 |
Measured error for this era×language (backtest): ±19 %
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| de roh NM × 1.512 (Sprach-Faktor aus 51 Karten) | 10 | 10 d | £3.41 | 2.23 |
| en roh NM × 1.222 (Sprach-Faktor aus 53 Karten) · Set +13% nachgeführt | 115 | 48 d | £4.09 | 1.2 |
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 × 1.1881 (Sprach-Faktor aus 46 Karten) · Set -11% nachgeführt | 115 | 48 d | £3.41 | 3.59 |
| de roh NM × 1.085 (Sprach-Faktor aus 42 Karten) | 10 | 10 d | £2.45 | 1.08 |
Measured error for this era×language (backtest): ±17 %
No PSA numbers for this print yet — in any language.
Frequently asked questions
Is it worth grading Professor's Research Scarlet & Violet 240/198?
A PSA 10 currently sells for about £73.39, raw the card sits at £3.12 — 23,5× as much. Mathematically, submitting returns £73.39 on average, before fees and shipping. Rule of thumb: submit when the value at a realistic grade is at least double the raw value — which is the case here. Centering decides it: an off-centre card will not get a 10.
Auction or Buy It Now — which gets more for Professor's Research Scarlet & Violet 240/198?
Across 26 auctions the median was £1.96, across 116 fixed-price sales £3.58. Fixed price therefore fetched about 83 % more — for this card patience with a set price is the better route.
What will I get for Professor's Research Scarlet & Violet 240/198 if I want to sell quickly?
Half of all sales fell between £2.54 and £3.96, with a median of £3.14. 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 240/198 unrealistic?
The cheapest genuine sales were around £1.78. Offers well below £1.07 are typically fakes, mislabelled cards or a different variant — ask for photos of all four borders and a close-up of the surface.
Is the English or the German Professor's Research Scarlet & Violet 240/198 worth more?
From real sales: English £2.77 (281), German £2.20 (26). English fetches about 26 % more.
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.
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