← All Professor's Peculiarity variants
Misty Skull Professor's Peculiarity
This price has not changed since 2025-11-10 00:19 UTC. It reflects the last observed trade rather than current market value, and this page is excluded from our sitemap for that reason.
Community price on backpack.tf: 450 keys, last changed 2026-06-24 (2mo ago). The live quote above, 361 keys, is 20% lower and last moved 10mo ago. They are different measures: the quote is what traders and bots are asking and bidding on the classifieds right now, and it moves for thousands of items every day; the community price is a suggestion accepted by vote, which changes only when someone argues it should. A quote well away from the vote is usually a price that is about to be re-argued. Community prices from backpack.tf, read under an hour ago.
Price history
Interactive chart. Press the left and right arrow keys to move along the series, Home or End to jump to either end, Escape to clear.
The key axis converts at today's rate. Prices are recorded in metal, so a line that is flat in keys followed the key rate rather than standing still.
| Observed (UTC) | Sell | Buy |
|---|---|---|
| 25 SEP 2025 · 03:29 UTC | 358 keys | 293 keys |
| 30 SEP 2025 · 20:29 UTC | 359 keys | 293 keys |
| 9 OCT 2025 · 08:13 UTC | 343 keys | 309 keys |
| 19 OCT 2025 · 19:59 UTC | 326 keys | 293 keys |
| 25 OCT 2025 · 16:17 UTC | 311 keys | 279 keys |
| 10 NOV 2025 · 00:19 UTC | 361 keys | 325 keys |
Price history in numbers
6 readings since 25 Sep 2025The price has not been re-read inside the last 30 days. Over a year it ranged from 311 keys to 361 keys (up 0.7%). Today's 361 keys sits at the top of its range: the lowest we have recorded is 311 keys (25 Oct 2025) and the highest 361 keys (10 Nov 2025). The price has moved 5 times since we began recording it — about once every 9 days.
| Window | Low | High | Change | Moves | Readings |
|---|---|---|---|---|---|
| a year | 311 keys | 361 keys | +0.7% | 5 | 6 |
Details
| SKU | 384;5;u44 |
|---|---|
| Last price change | 2025-11-10 00:19 UTC |
| Key rate when recorded | 64.33 ref |
Same effect, other items
the effect across the catalogue| Item | Value | Updated |
|---|---|---|
| 3,100 keys | 10mo ago | |
| 3,000 keys | 10mo ago | |
| 2,200 keys | 10mo ago | |
| 1,500 keys | 10mo ago | |
| 1,088 keys | 10mo ago | |
| 1,050 keys | 10mo ago | |
| 1,000 keys | 10mo ago | |
| 1,000 keys | 10mo ago | |
| 975 keys | 10mo ago | |
| 950 keys | 10mo ago |
Other effects on the Professor's Peculiarity
same item, different effect| Item | Value | Updated |
|---|---|---|
| 1,250 keys | 10mo ago | |
| 486 keys | 29d ago | |
| 298 keys | 2mo ago | |
| 283 keys | 6mo ago | |
| 275 keys | 18d ago | |
| 124 keys | 6h ago | |
| 121 keys | 8h ago | |
| 102 keys | 12h ago | |
| 100 keys | 10h ago | |
| 76.4 keys | 6d ago |
Priced similarly
across the catalogue| Item | Value | Updated |
|---|---|---|
| 361 keys | 10mo ago | |
| 361 keys | 10mo ago | |
| 361 keys | 10mo ago | |
| 374 keys | 2h ago | |
| 361 keys | 1mo ago | |
| 360 keys | 7mo ago | |
| 362 keys | 23d ago | |
| 363 keys | 2mo ago |