1 of 1, recently been traded around

Sale 1: sold for a Green Confetti Hard Counter (12.5) + Collectors Prof. KS Holiday Punch (7)

seller bp before: http://backpack.tf/profiles/76561198050016300?time=1438650499

seller bp after: http://backpack.tf/profiles/76561198050016300?time=1438844400

(12.5 + 7)*0.9

= 19.5*0.9

= 17.5 (r>)

> 18

Mini on the Collectors Prof. KS Holiday Punch:

lowest seller anywhere is for 7 keys: http://www.tf2outpost.com/trade/26708382 (worth 7.38 keys according to bp.tf)

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Sale 2: sold for a (duped) Dead Presidents Virus Doctor (no mini available, not using).

http://www.tf2outpost.com/trade/26470197

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Conclusion: Only 1 valid sale. Taking 18 flat.