there is one seller at 30 and two sellers at 35, i think it's a good price for this hat

http://backpack.tf/classifieds?item=Federal+Casemaker&quality=5&particle=88

http://backpack.tf/item/3285719190

http://www.tf2outpost.com/trade/27816996 - b/o 33 keys

http://backpack.tf/profiles/76561198119522638/#!/compare/1455264000/1455350400

http://backpack.tf/profiles/76561198119522638?time=1455350400#p4581045828

http://backpack.tf/profiles/76561198146222263/#!/compare/1454832000/1455436800

http://backpack.tf/profiles/76561198146222263?time=1455436800#p4534694948

33 keys

http://www.tf2outpost.com/trade/27814434 - can't prove b/o

http://backpack.tf/profiles/76561198119522638/#!/compare/1454659200/1454832000

http://backpack.tf/profiles/76561198119522638?time=1454832000#p4542620409

http://backpack.tf/profiles/76561198125791160/#!/compare/1454745600/1454832000

http://backpack.tf/profiles/76561198125791160?time=1454832000#p4566549047

30 keys

http://www.tf2outpost.com/trade/26438715 - b/o 36 keys

http://backpack.tf/profiles/76561198078579718/#!/compare/1452931200/1453017600

http://backpack.tf/profiles/76561198078579718?time=1453017600#p4502220311

http://backpack.tf/profiles/76561198069441398/#!/compare/1452585600/1453017600

http://backpack.tf/profiles/76561198069441398?time=1453017600#p4510442940

32 keys + ~65 ref in items, rounding to 35 keys

http://backpack.tf/profiles/76561198065331076/#!/compare/1456819200/1456905600

http://backpack.tf/profiles/76561198112612121/#!/compare/1456819200/1456905600

bulk for vivid boa

http://backpack.tf/profiles/76561198065331076/#!/compare/1456992000/1457078400

bulk for ge prof ushanka

http://backpack.tf/profiles/76561198146222263/#!/compare/1456473600/1456560000

sold for duped lantern softcap, can't find a mini

http://backpack.tf/profiles/76561198078579718/#!/compare/1454140800/1454227200

http://backpack.tf/profiles/76561198125791160/#!/compare/1454140800/1454227200

no idea

http://backpack.tf/item/3340663194

http://backpack.tf/profiles/76561198072845816/#!/compare/1456732800/1456819200

http://backpack.tf/profiles/76561198050518375/#!/compare/1456732800/1456819200

no idea

sellers

http://www.tf2outpost.com/trade/27919410 - b/o 30 keys, young

http://www.tf2outpost.com/trade/27919612 - b/o 35 keys, young

http://i.imgur.com/oTOGpF0.png - b/o 35 keys, young