(proof inside)

themed because engineers hate spies and pyros are good at killing spies and engineers and pyros are friends and pyro uses fire which engi wears on his head with this hat. also christmas lights can probably start fires if you're really stupid

Sold for 55 Keys

http://backpack.tf/profiles/76561198192602363#!/compare/1487721600/1487808000

Sold for a Haunted Ghosts Detective Noir(24 Keys), an Australium Spec KS Knife(~17 Keys at the time) and an Australium Spec KS Ambassador(~15 Keys at the time)(56 Keys total)

http://backpack.tf/profiles/76561198107520045#!/compare/1486684800/1486771200

55-56.

Credits to Mindacos for finding the proof, all I did was make the actual suggestion.