Bubbling Plumber's Pipe, unpriced

New pricing spree on Plumber's pipe.

Recent sold:

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http://backpack.tf/item/2335483645 Quicksold for a B.M.O.C + 6 ref + sweets

http://backpack.tf/profiles/76561198148927237?time=1422698247 (after)

http://backpack.tf/profiles/76561198148927237?time=1422604800 (before)

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http://backpack.tf/item/2335483645 Sold for

http://backpack.tf/item/3373163424 Pro KS Original Kit (see Mini: ~ 10 keys) Not using sale, because uncertain and outlier.

http://backpack.tf/profiles/76561198081400485?time=1421481600 (after)

Mini Pro KS Original Kit:

http://steamcommunity.com/market/listings/440/Professional%20Killstreak%20Original%20Kit

Sells for around ~ 10 keys on the SCM.

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http://backpack.tf/item/2335483645 Sold for

http://backpack.tf/item/3403111803 KS Aussie Frontier Justice (~ 13 keys * 0.9) ~ 12 keys

http://backpack.tf/profiles/76561198081613318?time=1421222400 (after)

http://backpack.tf/profiles/76561198081613318?time=1421136000 (before)

KS doesn't influence price much. Also rounded up 11.7 => 12.

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Additional Proof (BOs & COs):

None on market.

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