Terror-Watt Hound Dog

Sellers on classifieds

http://www.tf2outpost.com/search/272606028 - 13 keys

Sale #1

https://backpack.tf/profiles/76561198171909991#!/compare/1510185600/1510272000

Sold for a Neutron Star Cranial Carcharodon ( 14 keys ) + 3 keys = 17 keys

Mini for the Cranial

https://backpack.tf/suggestion/5a351120cf6c75426213f143 ~ 14 keys

Excluded as it is an outlier

Sale #2

https://backpack.tf/profiles/76561198324520800#!/compare/1512086400/1512172800

Sold for 12 keys + 10 ref + a 3.44 ref strange = 12.38 keys ~ 12 keys

Sale #3

https://backpack.tf/profiles/76561198304138933#!/compare/1510272000/1510358400

Sold for 12 keys + 30 ref = 12.86 ~ 13 keys

Conclusion

1 sold for 12 keys

1 sold for 13 keys

1 sold for 17 keys - excluded

Price range: 12 - 13 Keys

Any proof/counter proof is more than welcome!