Sale 1

Sold for ~12 keys in items = 12 * 0.9 = 11 keys

Seller before: http://backpack.tf/profiles/76561198087420810?time=1442041200 (September 12th)

Seller after: http://backpack.tf/profiles/76561198087420810?time=1442127600 (September 13th)

Compare link: http://backpack.tf/profiles/76561198087420810?time=1442041200&compare=1442127600

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Sale 2

Sold for 10 keys

Buyer before: http://backpack.tf/profiles/76561198090278303?time=1440745200 (August 28th)

Buyer after: http://backpack.tf/profiles/76561198090278303?time=1440831600 (August 29th)

Compare link: http://backpack.tf/profiles/76561198090278303?time=1440831600&compare=1440745200

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Sale 3

Sold/offered with ~1 key sweets for bubbling lord cockswain's pith helm (10-12) = 11 - 1 = 10 keys

Seller before: http://backpack.tf/profiles/76561198062119057?time=1436252400 (July 7th)

Seller after: http://backpack.tf/profiles/76561198062119057?time=1436338800 (July 8th)

Compare link: http://backpack.tf/profiles/76561198062119057?time=1436252400&compare=1436338800

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Sale 4

Sold for 9 keys and 9 refined = ~10 keys

http://www.tf2outpost.com/trade/26208195

Seller before: http://backpack.tf/profiles/76561198065752109?time=1436079600 (July 5th)

Seller after: http://backpack.tf/profiles/76561198065752109?time=1436166000 (July 6th)

Compare link: http://backpack.tf/profiles/76561198065752109?time=1436166000&compare=1436079600

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Seems kinda low but there's 3 sales at 10 keys and the last one took a while. Feedback welcome