New proof appeared.

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Sale #1 12th - 13th of July

http://backpack.tf/profiles/76561198033661509?time=1436684400

http://backpack.tf/profiles/76561198033661509?time=1436770800

Judjing by near IDs it was sold for: Bubbling Hotrod(15, old price), 4 keys pure, and ~1.2 keys in cosmetics\taunts. No idea who offered so... (15+1.2)*0.9 = 14.58 -> 15+4 = 19

Mini for Hotrod: I'll pay 3 ref and a unique v.tyrolean to any1 who will provide any decent damn mini, i checked every sale(one item with 3 sales, that's all in 3 months) and NOTHING was usable. For now i'm using old price, i can't believe but yes.

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Sale #2: Unusable, 19th - 22th of May

http://backpack.tf/profiles/76561198118343427?time=1432018800

http://backpack.tf/profiles/76561198118343427?time=1432278000

Amount unknown, same for the other side of deal.

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Sale #3 Credits to Teeny Tiny Cat. http://backpack.tf/u/76561198053709937

Seller before: http://backpack.tf/profiles/76561198118343427?time=1435129200 (June 24th)

Seller after: http://backpack.tf/profiles/76561198118343427?time=1435215600 (June 25th)

Sold for: DP Tyrannus(22) Hey, my suggestion! 22*0.9 = 20

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Conclusion: As i believe that's only possible sales. There's one more sale but it's old and idk for what was it sold. http://backpack.tf/item/3681034414