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Phosphorous Tam O' Shanter

PhosphorousUnusual6d ago
Sell price
82 keys, 0.44 ref
Buy price
71 keys, 19.88 ref
In keys
82.0 keys
In USD
$185.34 at the Steam key rate

Community price on backpack.tf: 80.0–110 keys, last changed 2023-05-21 (3.3y ago). The live quote above, 82.0 keys, is inside the community’s range and last moved 6d 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

23 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.

Phosphorous Tam O' Shanter sell price, 2025-09-25 to 2026-08-31: 23 observations, from 111 keys to 82.0 keys.
Observed (UTC)SellBuy
25 SEP 2025 · 03:29 UTC111 keys65.4 keys
30 SEP 2025 · 20:32 UTC110 keys65.4 keys
9 OCT 2025 · 08:16 UTC105 keys68.7 keys
19 OCT 2025 · 20:02 UTC99.9 keys65.4 keys
25 OCT 2025 · 16:21 UTC95.1 keys62.3 keys
10 NOV 2025 · 00:23 UTC97.6 keys63.8 keys
23 JUN 2026 · 07:14 UTC50.7 keys44.1 keys
29 JUN 2026 · 01:14 UTC52.7 keys45.8 keys
5 JUL 2026 · 21:12 UTC48.6 keys42.3 keys
12 JUL 2026 · 22:44 UTC49.8 keys43.3 keys
19 JUL 2026 · 08:44 UTC51.8 keys45.0 keys
29 JUL 2026 · 02:45 UTC53.6 keys46.6 keys
3 AUG 2026 · 00:24 UTC55.6 keys48.4 keys
10 AUG 2026 · 09:10 UTC55.7 keys48.4 keys
18 AUG 2026 · 09:10 UTC63.0 keys54.8 keys
25 AUG 2026 · 06:09 UTC55.6 keys48.4 keys
27 AUG 2026 · 14:08 UTC76.8 keys66.8 keys
28 AUG 2026 · 03:04 UTC79.5 keys69.1 keys
28 AUG 2026 · 14:10 UTC79.8 keys69.4 keys
29 AUG 2026 · 02:09 UTC80.1 keys69.6 keys
30 AUG 2026 · 00:09 UTC81.0 keys70.5 keys
30 AUG 2026 · 12:08 UTC82.8 keys72.0 keys
31 AUG 2026 · 08:09 UTC82.0 keys71.3 keys

Price history in numbers

23 readings since 25 Sep 2025

Over the last 30 days the Phosphorous Tam O' Shanter's sell price ranged from 55.6 keys to 82.8 keys and is up 47.3% after 9 moves. Over a year it ranged from 48.6 keys to 111 keys (down 26.2%). Today's 82.0 keys sits in the middle of its range: the lowest we have recorded is 48.6 keys (5 Jul 2026) and the highest 111 keys (25 Sep 2025). The price has moved 22 times since we began recording it — about once every 15 days.

WindowLowHighChangeMovesReadings
30 days55.6 keys82.8 keys+47.3%910
90 days48.6 keys82.8 keys+61.6%1617
a year48.6 keys111 keys−26.2%2223

Details

SKU480;5;u63
Last price change2026-08-31 08:09 UTC
Key rate when recorded64.00 ref

Same effect, other items

the effect across the catalogue

Other effects on the Tam O' Shanter

same item, different effect

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