Professor Birch's Observations
| ebay.nl | n=4 | €14,62 | +89% |
| ebay.de | n=8 | €10,54 | +36% |
| ebay.es | n=25 | €10,44 | +35% |
| ebay.co.uk | n=11 | €9,11 | +18% |
| ebay.com | n=40 | €7,94 | +3% |
| ebay.it | n=4 | €7,73 | — |
How is this value calculated?
Recency-weighted trimmed median of 4 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 | 9 | 39 d | €16,50 | 73.47 |
| eigene LP-Verkäufe ÷ 0.9004 | 16 | 23 d | €9,65 | 6.21 |
| eigene PSA9-Verkäufe ÷ 4.9393 | 3 | 2 mo | €9,24 | 3.13 |
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) | 9 | 39 d | €23,96 | 2.4 |
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) | 9 | 39 d | €20,47 | 2.31 |
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) | 9 | 39 d | €17,94 | 12.0 |
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.
Frequently asked questions
Is it worth grading Professor Birch's Observations Primal Clash 159/160?
A PSA 10 currently sells for about €1.317,63, raw the card sits at €12,48 — 105,6× as much. Of 289 copies already graded, 4 % received a 10 and 17 % a 9. Mathematically, submitting returns €125,43 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. The grade distribution comes from the PSA Population Report; people pre-sort before submitting, so your own hit rate may differ.
Auction or Buy It Now — which gets more for Professor Birch's Observations Primal Clash 159/160?
Across 14 auctions the median was €5,25, across 52 fixed-price sales €9,57. Fixed price therefore fetched about 82 % more — for this card patience with a set price is the better route.
What will I get for Professor Birch's Observations Primal Clash 159/160 if I want to sell quickly?
Half of all sales fell between €6,48 and €11,22, with a median of €8,83. 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 Birch's Observations Primal Clash 159/160 unrealistic?
The cheapest genuine sales were around €5,15. Offers well below €3,09 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.