| ebay.es | n=9 | £2.17 | +175% |
| ebay.nl | n=4 | £2.08 | +165% |
| ebay.co.uk | n=3 | £1.77 | +125% |
| ebay.com | n=19 | £0.79 | — |
How is this value calculated?
Recency-weighted trimmed median of 6 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 | 5 | 2 mo | £1.01 | 40.82 |
| eigene LP-Verkäufe ÷ 0.9487 | 6 | 2 mo | £1.57 | 4.95 |
Measured error for this era×language (backtest): ±19 %
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 1.4515 (Sprach-Faktor aus 33 Karten) | 5 | 2 mo | £1.46 | 2.34 |
Measured error for this era×language (backtest): ±43 %
Gate not green — shown only here, never as the price.
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 1.2403 (Sprach-Faktor aus 19 Karten) | 5 | 2 mo | £1.24 | 2.25 |
Measured error for this era×language (backtest): ±12 %
Gate not green — shown only here, never as the price.
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 1.0872 (Sprach-Faktor aus 35 Karten) | 5 | 2 mo | £1.09 | 10.62 |
Measured error for this era×language (backtest): ±14 %
Gate not green — shown only here, never as the price.
No PSA numbers for this print yet — in any language.
#146a
#189 · U
#146 · U
#142 · UR
#90 · R
#144 · UR
#141 · UR
#146 · UR
#143 · UR
#30 · UR
#45 · U
#145 · URFrequently asked questions
What will I get for Professor's Letter XY 123/146 if I want to sell quickly?
Half of all sales fell between £0.79 and £1.96, with a median of £1.42. 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 Letter XY 123/146 unrealistic?
The cheapest genuine sales were around £0.73. Offers well below £0.44 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.