Colress's Experiment · Championship Stamp
Origin: Regionals / Nationals / Internationals · Tournament / league play · Lost Origin
Market price
$1.30
based on 2 sales
Price history · RAW
2026-04-09 · $4.61
$29.15 · 2026-09-08
How is this value calculated?
Direct market value · $1.30
Recency-weighted trimmed median of 2 NM sales (RAW; outliers trimmed against the median, newer sales weigh more, dynamic half-life).
Ladder estimate · English
· ~$1.30
gelb
championship
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| eigene rohe NM-Verkäufe · Set -46% nachgeführt | 2 | 46 d | $1.30 | 16.33 |
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $1.30 · Σ g = 16.33
Measured error for this era×language (backtest): ±20 %
Gate not green — shown only here, never as the price.
PSA Population
No PSA numbers for this print yet — in any language.
Recent sales · 8
| 2026-09-08 | EN | RAW LP | Colress's Experiment (Regional Championships) 155/196 League · eBay | $7.71 |
| 2026-09-02 | EN | RAW LP | Colress's Experiment (Regional Championships) 155/196 League · eBay | $7.73 |
| 2026-08-29 | EN | RAW NM | Colress's Experiment Championships National Stamped Promo 15 · eBay | $1.54 |
| 2026-08-29 | EN | RAW LP | Colress's Experiment (Regional Championships) 155/196 League · eBay | $7.69 |
| 2026-07-06 | EN | RAW UNKNOWN | Colress's Experiment 155/196 - Regional Promo - Verlorener U · eBay | $29.15 |
| 2026-05-28 | EN | RAW NM | Colress's Experiment Lost Origins Regionals Promo 155/196 - · eBay | $8.20 |
| 2026-05-23 | EN | PSA 10 | PSA 10 GEM MINT Colress's Experiment Reverse Foil Regional C · eBay | $175.93 |
| 2026-04-09 | EN | RAW UNKNOWN | Colress's Experiment 155/196 - Regional Promo - Lost Origin · eBay | $19.18 |
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FAQ
Frequently asked questions
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.
Colress's Experiment · Championship Stamp Championship Promos · 155