Sold with Pro KS Aussie Sniper Rifle (40) for a Spellbound Buccaneer's Bicorne (100)

http://backpack.tf/profiles/76561198063794921?time=1430463600 (May 1st)

http://backpack.tf/profiles/76561198063794921?time=1430636400 (May 3rd)

Bicorne: http://www.tf2outpost.com/trade/25780459

This was likely offered on since the Brim had no trade and a Sniper Rifle was added.

100 - 40 = 60 keys

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http://www.tf2outpost.com/trade/25200124

Sold for Nuts Crone's (32.5) + Terror Watt Hound Dog (15) + Stormy Doctor's Sack (13) + 1 key + ~0.7 keys in items metal

http://backpack.tf/profiles/76561198032623463?time=1427266800 (March 25th)

http://backpack.tf/profiles/76561198032623463?time=1427439600 (March 27th)

((32.5 + 15 + 13 + 0.7) * 0.9) + 1 = 56 keys

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http://www.tf2outpost.com/trade/25687580

Sold for a GE Softcap (49.5)

http://backpack.tf/profiles/76561198084433574?time=1428822000 (April 12th)

http://backpack.tf/profiles/76561198084433574?time=1428908400 (April 13th)

The trade looks like it sold quick, but this was relisted several times over weeks.

http://www.tf2outpost.com/trade/25617823 It was offered on the Softcap here

Taking this sale as 50 keys