Community price on backpack.tf: 36.0 keys, last changed 2018-08-20 (8.1y ago). The live quote above, 49.3 keys, is 37% higher and last moved 4d 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
18 observations
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.
Tesla Coil Professor's Peculiarity sell price, 2025-09-25 to 2026-09-02: 18 observations, from 37.1 keys to 49.3 keys.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
37.1 keys
30.4 keys
30 SEP 2025 · 20:29 UTC
37.1 keys
30.4 keys
9 OCT 2025 · 08:13 UTC
35.5 keys
31.9 keys
19 OCT 2025 · 19:59 UTC
33.7 keys
30.4 keys
25 OCT 2025 · 16:18 UTC
32.1 keys
28.9 keys
10 NOV 2025 · 00:19 UTC
33.0 keys
29.7 keys
22 JUN 2026 · 17:13 UTC
19.2 keys
16.7 keys
29 JUN 2026 · 01:14 UTC
30.8 keys
26.8 keys
5 JUL 2026 · 13:11 UTC
36.1 keys
31.4 keys
12 JUL 2026 · 22:44 UTC
36.8 keys
32.0 keys
24 JUL 2026 · 10:44 UTC
38.5 keys
33.5 keys
29 JUL 2026 · 04:46 UTC
40.5 keys
35.3 keys
3 AUG 2026 · 00:24 UTC
41.7 keys
36.3 keys
10 AUG 2026 · 07:11 UTC
41.9 keys
36.5 keys
18 AUG 2026 · 05:11 UTC
36.6 keys
31.8 keys
24 AUG 2026 · 02:09 UTC
26.3 keys
22.9 keys
29 AUG 2026 · 08:09 UTC
25.6 keys
22.3 keys
2 SEP 2026 · 02:08 UTC
49.3 keys
42.9 keys
Price history in numbers
18 readings since 25 Sep 2025
Over the last 30 days the Tesla Coil Professor's Peculiarity's sell price ranged from 25.6 keys to 49.3 keys and is up 17.6% after 4 moves. Over a year it ranged from 19.2 keys to 49.3 keys (up 32.9%). Today's 49.3 keys sits at the top of its range: the lowest we have recorded is 19.2 keys (22 Jun 2026) and the highest 49.3 keys (2 Sep 2026). The price has moved 17 times since we began recording it — about once every 20 days.