Faux Professeur Chen #73, 1st Edition, French Base Set
French edition
- Card number: #73/102
- ·Finish: Non-Holo
A PSA 9 Faux Professeur Chen #73 1st Edition from French Base Set has a TCGBerg fair value of $109 as of Nov 15, 2026. TCGBerg has recorded 3 PSA 9 sales of this card, the latest on Jul 21, 2026. PSA has graded 54 copies at PSA 9.
TCGBerg Algorithm (estimated from recorded sales).
- Population · PSA 9
- 54
- Market cap
- $5.9K
- Volatility
- 1.5%
- YTD
- ↑ 40.3%
- Sales evidence
- Moderate
TCGBerg fair value · PSA 9
$109
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, $80 on Jul 21, 2026, sits 26.8% below the $109 fair value. The value weighs 3 PSA 9 sales from the past year, not the latest one alone. With so few PSA 9 sales on record, a single sale can sit far from the value. Its confidence band runs from $101 to $117. A PSA 10 ($448) is worth 4.1 times a PSA 9 ($109). Over the past 30 days the PSA 9 value has fallen 4.9%.
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
5 trackedEach sale against the grade's fair value on the day it sold.
| Date | Grade | Venue | Price | vs fair value |
|---|---|---|---|---|
| Jul 21, 2026 | PSA9 | eBay | $80 | below fair value by -7.4% |
| Apr 25, 2026 | PSA10 | eBay | $328 | above fair value by +19.3% |
| Apr 13, 2026 | PSA9 | eBay | $60 | below fair value by -21.7% |
| Mar 19, 2026 | PSA9 | eBay | $97 | above fair value by +5.4% |
| Feb 25, 2026 | PSA8 | eBay | $35 | below fair value by -13.5% |
- $80Jul 21, 2026 · via eBayPSA9↓below fair value by 7.4%
- $328Apr 25, 2026 · via eBayPSA10↑above fair value by 19.3%
- $60Apr 13, 2026 · via eBayPSA9↓below fair value by 21.7%
- $97Mar 19, 2026 · via eBayPSA9↑above fair value by 5.4%
- $35Feb 25, 2026 · via eBayPSA8↓below fair value by 13.5%
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$4481d ·0.0%7d ↓0.1%30d ↑0.2%
- Pop
- 54
- Mcap
- $24.2K
- Evidence
- Sparse
- Last
- $328
- PSA9$1091d ·0.0%7d ↓0.7%30d ↓4.9%
- Pop
- 54
- Mcap
- $5.9K
- Evidence
- Moderate
- Last
- $80
- PSA8$611d ·0.0%7d ·0.0%30d ↓1.9%
- Pop
- 15
- Mcap
- $910
- Evidence
- Sparse
- Last
- $35
| PSA10 | $448 | 54 | $24.2K | 0.0% | ↓down 0.1% | ↑up 0.2% | ↑up 30.4% | Sparse | $3287mo ago |
| PSA9 | $109 | 54 | $5.9K | 0.0% | ↓down 0.7% | ↓down 4.9% | ↑up 25.3% | Moderate | $804mo ago |
| PSA8 | $61 | 15 | $910 | 0.0% | 0.0% | ↓down 1.9% | ↑up 14.5% | Sparse | $359mo ago |
| PSA7 | $34 | 5 | $168 | 0.0% | 0.0% | ↓down 4.6% | ↑up 20.5% | Sparse | - |
| PSA6 | $33 | 1 | $33 | 0.0% | 0.0% | ↓down 6.2% | ↑up 18.5% | Sparse | - |
| PSA5 | $33 | 3 | - | 0.0% | 0.0% | ↓down 6.2% | ↑up 18.5% | Sparse | - |
PSA population report
How Faux Professeur Chen'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.132 graded copies of Faux Professeur Chen 1st Edition across 6 grades. The selected grade is highlighted.
PSA 9 makes up 41% of graded copies: 54 of 132. PSA 10 is the most common grade (41%).
Analysis
Faux Professeur Chen - 1st Edition at PSA 10 carries a TCGBerg fair value of $448 as of 2026-11-14. We track a TCGBerg fair value across 6 grades from French Base Set, from PSA 6 up to PSA 10. A graded population of 54 copies sits behind the PSA 10 grade. The PSA 10 valuation rests on sparse sales evidence. Over the past 30 days, the PSA 10 TCGBerg fair value has risen 0.2%.