Recherche Informatique #71, 1st Edition, French Base Set
French edition
- Card number: #71/102
- ·Finish: Non-Holo
A PSA 9 Recherche Informatique #71 1st Edition from French Base Set has a TCGBerg fair value of $83 as of Nov 14, 2026. TCGBerg has recorded 5 PSA 9 sales of this card, the latest on Sep 27, 2026. PSA has graded 60 copies at PSA 9.
TCGBerg Algorithm (estimated from recorded sales).
- Population · PSA 9
- 60
- Market cap
- $5.0K
- Volatility
- 1.2%
- YTD
- ↑ 12.4%
- Sales evidence
- Moderate
TCGBerg fair value · PSA 9
$83
Price history
Weekly fair value over time, plus a confidence band around it: how precisely we can pin the value, which tightens as more sales confirm it. Dots mark individual sales, snapped to their week: red when above fair value (a premium), green when below (a deal), hollow when flagged as an outlier. Switch the active grade with the selector above.Weekly fair value for PSA 9. Shaded area is the confidence band: how precisely we can pin the value; it tightens as more sales confirm it. Dots are individual sales. Confidence band: how precisely we can pin the fair value. It widens when sales scatter and narrows as more sales back the value up. The dots show the actual sale prices.
What the evidence says
The last PSA 9 sale, $55 on Sep 27, 2026, sits 33.8% below the $83 fair value. The value weighs 5 PSA 9 sales from the past year, not the latest one alone. The latest sale ran below the recent run: the last 5 PSA 9 sales averaged $81, within 2.2% of the value. Its confidence band runs from $73 to $93. A PSA 10 ($305) is worth 3.7 times a PSA 9 ($83). Over the past 30 days the PSA 9 value has fallen 3.8%.
TCGBerg fair value by grade
Side-by-side comparison of value across every grade and ungraded condition we track for this printing. The bar chart uses a log scale so raw and gem-mint fit on one axis. Solid bars are the TCGBerg fair value, modelled from recorded sales. Hatched bars are the latest market price instead, shown for ungraded conditions that trade too rarely for us to price one honestly.Value at each grade and ungraded condition. Log scale. Tap a row to switch the whole page.
Behind the scenes
How the published fair value for this grade was produced: the sales it rests on, how they were put together, and every recorded change afterwards. It describes one saved calculation, not a live recomputation.What goes into this price, and how much we know.
Recent sales
10 trackedEach sale against the grade's fair value on the day it sold.
| Date | Grade | Venue | Price | vs fair value |
|---|---|---|---|---|
| Sep 27, 2026 | PSA9 | eBay | $55 | below fair value by -24.8% |
| Aug 29, 2026 | PSA9 | eBay | $100 | above fair value by +6.6% |
| Aug 22, 2026 | PSA7 | eBay | $52 | above fair value by +27.7% |
| Jul 21, 2026 | PSA9 | eBay | $150 | above fair value by +45.9% |
| Jun 7, 2026 | PSA10 | eBay | $284 | above fair value by +6.6% |
- $55Sep 27, 2026 · via eBayPSA9↓below fair value by 24.8%
- $100Aug 29, 2026 · via eBayPSA9↑above fair value by 6.6%
- $52Aug 22, 2026 · via eBayPSA7↑above fair value by 27.7%
- $150Jul 21, 2026 · via eBayPSA9↑above fair value by 45.9%
- $284Jun 7, 2026 · via eBayPSA10↑above fair value by 6.6%
| May 24, 2026 | PSA10 | eBay | $275 | above fair value by +11.5% |
| Apr 13, 2026 | PSA9 | eBay | $41 | below fair value by -27.9% |
| Mar 29, 2026 | PSA10 | eBay | $137 | below fair value by -13.0% |
- $275PSA10↑above fair value by 11.5%
- $41PSA9↓below fair value by 27.9%
- $137PSA10↓below fair value by 13.0%
5 more sales with Pro
Up to 20 recent sales, each with its venue and its gap to fair value.
↓Includes a sale 27.9% below fair value
All grades matrix
Every grade we track for this printing. Click any column header to sort; the rightmost column jumps you to listings for that grade.
- PSA10$3051d ·0.0%7d ·0.0%30d ↑11.3%
- Pop
- 64
- Mcap
- $19.5K
- Evidence
- Limited
- Last
- $284
- PSA9$831d ·0.0%7d ↓0.5%30d ↓3.8%
- Pop
- 60
- Mcap
- $5.0K
- Evidence
- Moderate
- Last
- $55
- PSA8$471d ·0.0%7d ·0.0%30d ↑0.2%
- Pop
- 13
- Mcap
- $608
- Evidence
- Sparse
- Last
- -
| PSA10 | $305 | 64 | $19.5K | 0.0% | 0.0% | ↑up 11.3% | ↑up 4.5% | Limited | $2845mo ago |
| PSA9 | $83 | 60 | $5.0K | 0.0% | ↓down 0.5% | ↓down 3.8% | ↓down 21.5% | Moderate | $552mo ago |
| PSA8 | $47 | 13 | $608 | 0.0% | 0.0% | ↑up 0.2% | ↓down 28.0% | Sparse | - |
| PSA7 | $44 | 5 | $219 | ↑up 0.1% | ↑up 0.2% | ↓down 2.5% | ↑up 85.5% | Sparse | $523mo ago |
| PSA6 | $38 | 3 | $114 | 0.0% | 0.0% | ↓down 15.0% | ↑up 61.1% | Sparse | - |
PSA population report
How Recherche Informatique's graded copies are spread across grades. Each bar is the number of copies graded at that grade; the percentage is that grade's share of the total graded population. These are recorded graded copies, not the total print run. A smaller population alone does not establish a price premium.145 graded copies of Recherche Informatique 1st Edition across 5 grades. The selected grade is highlighted.
PSA 9 makes up 41% of graded copies: 60 of 145. PSA 10 is the most common grade (44%).
Analysis
Recherche Informatique - 1st Edition at PSA 10 carries a TCGBerg fair value of $305 as of 2026-11-13. We track a TCGBerg fair value across 5 grades from French Base Set, from PSA 6 up to PSA 10. A graded population of 64 copies sits behind the PSA 10 grade. The PSA 10 valuation rests on limited sales evidence. Over the past 30 days, the PSA 10 TCGBerg fair value has risen 11.3%.