Scorching Flames Plumber's Pipe, unpriced

Last one of the pricing spree on Plumber's pipe. Lower than i expected. Check out that current guy who is selling it on TF2OP

Recent sold:

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http://backpack.tf/item/2477926677 Sold for 1 bud pure + C9 Duty Rag + sweets

http://backpack.tf/profiles/76561198144020173?time=1421222400 (after, see new Items)

http://backpack.tf/profiles/76561198144020173?time=1421157815 (before)

Mini C9 duty rag:

http://www.tf2outpost.com/trade/24839037 Sold with orb.Planets(~ 1.2) dapper for

http://www.tf2outpost.com/item/440,3478482293,613,5 OF Gym rat (~1) +

http://www.tf2outpost.com/item/440,3478482266,337,5 Smoking Phantom(~ 1.8) (~ 2.8 * 0.9) ~ 2.5 - 1.2 = 1.3 buds

~ 1 + 1.3 ~ 2.3 buds

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http://backpack.tf/item/2477926677 Sold for

http://backpack.tf/item/2142858363 Terror Gutenkutteharen (severely outdated, see Mini ~ 1.5) +

http://backpack.tf/item/2591649565 Miami Letch's LED (~ 2.8 old price, see Mini ~ 2.5)

http://backpack.tf/profiles/76561198155510093?time=1420876800 (after)

(~2.5 + ~ 1.5) * 0.9 ~ 3.6 buds

Outlier due to current B/O

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Mini Miami letch:

http://www.tf2outpost.com/trade/24711436 (1 week) B/O: 3 buds

http://www.tf2outpost.com/trade/24795482 (1 week) B/O: 2.8 buds

http://www.tf2outpost.com/trade/24895061 B/O: 2.5 buds

http://www.tf2outpost.com/trade/24836582 B/O: 2.8 buds

Taking 2.5 buds conservatively.

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Mini Terror Gutenkutteharen:

http://www.tf2outpost.com/trade/24624601 Sold for

http://www.tf2outpost.com/item/440,3430564981,30004,5 Miami Sensei (~ 1.7 * 0.9) ~ 1.5

http://www.tf2outpost.com/trade/24602974 Sold for

http://www.tf2outpost.com/item/440,3430369207,30021,5 Bonzo Tin capotain unpriced

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http://www.tf2outpost.com/trade/24221734 B/O: 2.8 buds Sold for

http://backpack.tf/item/1764363061 Power Surge Vintage Merry unpriced

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http://www.tf2outpost.com/trade/23585460 Sold for

http://www.tf2outpost.com/item/440,3161093792,654,11 Pro KS sf. Minigun ~ 2 buds

Mini Pro KS Sf. Minigun

http://www.tf2outpost.com/trade/24644928 B/O: 28 keys

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Additional Proof (BOs & COs):

http://www.tf2outpost.com/trade/24686454 (unbumped for 2 weeks, Bug?) B/O at 2 buds

Explain this. His name and the text.

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Tried my best, any kind of further proof/counter proof is always appreciated. Thanks!