Maintenance #83, 1st Edition, Traditional Chinese Base Set
Traditional Chinese edition
- Card number: #83/102
- ·Finish: Non-Holo
A PSA 9 Maintenance #83 1st Edition from Traditional Chinese Base Set has a TCGBerg fair value of $167 as of Nov 15, 2026. It rests on 1 recorded sale, the latest on Apr 24, 2026. PSA has graded 11 copies at PSA 9. Sales evidence is sparse, so treat this value as a rough estimate.
TCGBerg Algorithm (estimated from recorded sales).
1 sale · latest Apr 24, 2026
- Population · PSA 9
- 11
- Market cap
- $1.8K
- Volatility
- 9.8%
- YTD
- -
- Sales evidence
- Sparse
TCGBerg fair value · PSA 9
$167
Based on 1 recorded sale. Latest sale: Apr 24, 2026.
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, $115 on Apr 24, 2026, sits 31.3% below the $167 fair value. The value rests on 1 recorded PSA 9 sale. With so few PSA 9 sales on record, a single sale can sit far from the value. Its confidence band runs from $125 to $209. A PSA 10 ($522) is worth 3.1 times a PSA 9 ($167). Over the past 30 days the PSA 9 value has risen 61.9%. With sparse sales evidence, read the gap and the band as rough guides.
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
1 trackedEach sale against the grade's fair value on the day it sold.
| Date | Grade | Venue | Price | vs fair value |
|---|---|---|---|---|
| Apr 24, 2026 | PSA9 | eBay | $115 | at fair value by 0.0% |
- $115Apr 24, 2026 · via eBayPSA9·at fair value by 0.0%
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$5221d ·0.0%7d ·0.0%30d ↓25.4%
- Pop
- 2
- Mcap
- $1.0K
- Evidence
- Sparse
- Last
- -
- PSA9$1671d ·0.0%7d ↓0.1%30d ↑61.9%
- Pop
- 11
- Mcap
- $1.8K
- Evidence
- Sparse
- Last
- $115
- PSA8$711d ·0.0%7d ·0.0%30d ↑63.1%
- Pop
- 3
- Mcap
- $213
- Evidence
- Sparse
- Last
- -
| PSA10 | $522 | 2 | $1.0K | 0.0% | 0.0% | ↓down 25.4% | ↓down 55.0% | Sparse | - |
| PSA9 | $167 | 11 | $1.8K | 0.0% | ↓down 0.1% | ↑up 61.9% | ↑up 22.9% | Sparse | $1157mo ago |
| PSA8 | $71 | 3 | $213 | 0.0% | 0.0% | ↑up 63.1% | ↓down 31.6% | Sparse | - |
| PSA7 | $41 | 2 | $81 | 0.0% | 0.0% | ↓down 6.6% | ↓down 45.2% | Sparse | - |
| PSA6 | $24 | 1 | $24 | 0.0% | 0.0% | ↑up 10.0% | ↓down 54.0% | Sparse | - |
PSA population report
How Maintenance'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.19 graded copies of Maintenance 1st Edition across 5 grades. The selected grade is highlighted.
PSA 9 makes up 58% of graded copies: 11 of 19. It’s the most common grade for this card.
Analysis
Maintenance - 1st Edition at PSA 10 carries a TCGBerg fair value of $522 as of 2026-11-14. We track a TCGBerg fair value across 5 grades from Traditional Chinese Base Set, from PSA 6 up to PSA 10. A graded population of 2 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 fallen 25.4%.