Hoping for this suggestion to be accepted :-)

*I'm not a premium user so any sales that you have found will be appreciated.

Credits to Foamy for helping me find sales for this suggestion :-)

ATM there are 4 sales for this unusual.

Sale #1

Sold along with 10 keys for an Arcana Naggenvatcher.(3 months old price so technically can be used) which is 88 keys

http://backpack.tf/profiles/76561198080250669/#!/compare/1457078400/1457251200

Sale #2

Sold for a Haunted ghost Attendant + Strange Killstreak Backwoods Boomstick Shotgun (Field-Tested) which is 77.37 keys but rounding off to 77 keys.

http://backpack.tf/profiles/76561198080250669/#!/compare/1460246400/1460419200

Sale #3

Sold for a Morning Glory Degroot(Needs a mini on it)

http://backpack.tf/profiles/76561198119391986/#!/compare/1459036800/1459123200

Sale #4

Sold along with TW Beak for a C9 Nunhood(Not usable)

http://backpack.tf/profiles/76561197970546151/#!/compare/1458370800/1458543600

Any constructive criticism is always appreciated :D