| ebay.es | n=11 | £3.05 | +64% |
| ebay.com | n=40 | £1.86 | — |
How is this value calculated?
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| eigene rohe NM-Verkäufe · Set +37% nachgeführt | 18 | 2 mo | £3.86 | 146.94 |
| eigene LP-Verkäufe ÷ 0.6403 · Set +37% nachgeführt | 8 | 3 mo | £3.52 | 18.05 |
Measured error for this era×language (backtest): ±22 %
Gate not green — shown only here, never as the price.
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 0.9854 (Sprach-Faktor aus 42 Karten) · Set +41% nachgeführt | 18 | 2 mo | £3.89 | 2.39 |
Measured error for this era×language (backtest): ±20 %
Gate not green — shown only here, never as the price.
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 1.0288 (Sprach-Faktor aus 9 Karten) · Set +41% nachgeführt | 18 | 2 mo | £4.06 | 6.23 |
Measured error for this era×language (backtest): ±2 %
Gate not green — shown only here, never as the price.
No PSA numbers for this print yet — in any language.
#32 · 
#103 · 
#72 · 
#41 · 
#40 · 
#45 · 
#46 · 
#49 · 
#134 · 
#73 · 
#157 · 
#104 · Frequently asked questions
Auction or Buy It Now — which gets more for Swellow POP Series 1 15/17?
Across 14 auctions the median was £1.66, across 45 fixed-price sales £2.95. Fixed price therefore fetched about 78 % more — for this card patience with a set price is the better route.
What will I get for Swellow POP Series 1 15/17 if I want to sell quickly?
Half of all sales fell between £1.54 and £3.22, with a median of £2.21. 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 Swellow POP Series 1 15/17 unrealistic?
The cheapest genuine sales were around £1.45. Offers well below £0.87 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.