Professor's Research
| ebay.fr | n=5 | $4.49 | +120% |
| ebay.nl | n=4 | $3.23 | +58% |
| ebay.es | n=30 | $3.22 | +58% |
| ebay.de | n=42 | $2.30 | +13% |
| ebay.com | n=61 | $2.11 | +3% |
| ebay.co.uk | n=6 | $2.04 | — |
How is this value calculated?
Recency-weighted trimmed median of 44 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 | 44 | 2 mo | $2.58 | 359.18 |
| eigene LP-Verkäufe ÷ 0.9601 | 4 | 2 mo | $2.46 | 4.96 |
| eigene PSA10-Verkäufe ÷ 11.7084 | 3 | 4 mo | $3.32 | 0.35 |
| de roh NM × 1.1401 (Sprach-Faktor aus 72 Karten) | 4 | 18 d | $2.56 | 3.54 |
| fr roh NM × 0.8269 (Sprach-Faktor aus 50 Karten) | 4 | 3 mo | $0.46 | 1.56 |
Measured error for this era×language (backtest): ±16 %
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| eigene rohe NM-Verkäufe | 4 | 18 d | $2.24 | 32.65 |
| en roh NM × 0.8771 (Sprach-Faktor aus 72 Karten) | 44 | 2 mo | $2.27 | 3.67 |
| fr roh NM × 0.6892 (Sprach-Faktor aus 49 Karten) | 4 | 3 mo | $0.38 | 2.15 |
Measured error for this era×language (backtest): ±19 %
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| eigene rohe NM-Verkäufe | 4 | 3 mo | $0.56 | 32.65 |
| de roh NM × 1.4511 (Sprach-Faktor aus 49 Karten) | 4 | 18 d | $3.26 | 1.63 |
| en roh NM × 1.2094 (Sprach-Faktor aus 50 Karten) | 44 | 2 mo | $3.13 | 1.26 |
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 × 1.1833 (Sprach-Faktor aus 46 Karten) | 44 | 2 mo | $3.06 | 3.43 |
| de roh NM × 1.113 (Sprach-Faktor aus 42 Karten) | 4 | 18 d | $2.50 | 0.75 |
| fr roh NM × 0.739 (Sprach-Faktor aus 37 Karten) | 4 | 3 mo | $0.42 | 0.58 |
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 241/198?
A PSA 10 currently sells for about $38.93, raw the card sits at $2.64 — 14,8× as much. Mathematically, submitting returns $38.93 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 241/198?
Across 31 auctions the median was $1.27, across 58 fixed-price sales $2.93. Fixed price therefore fetched about 131 % 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 $1.76 and $3.48, with a median of $2.35. 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 $0.98. Offers well below $0.59 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 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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