Sale 1:

Sold for Disco Beat Down Headsplitter (Suggestion at 47.5) + >6 keys in pure/items

http://i.imgur.com/2q6vVsV.png - B/O of 55

Seller: https://backpack.tf/profiles/76561198082869799#!/compare/1503100800/1503187200

Buyer: https://backpack.tf/profiles/76561197960267527#!/compare/1502496000/1503187200

X = 54

Sale 2:

Sold for 52 keys

http://www.tf2outpost.com/trade/29300842 - B/O of 55

Seller: https://backpack.tf/profiles/76561198176125115#!/compare/1501891200/1502064000

Buyer: https://backpack.tf/profiles/76561198046477272#!/compare/1501977600/1502064000

X = 52

Sale 3:

Sold with ~20 keys in pure/items for Anti-Freeze Rimmed Raincatcher

Seller: https://backpack.tf/profiles/76561198122624569#!/compare/1500336000/1501027200

Buyer: https://backpack.tf/profiles/76561198176125115#!/compare/1500940800/1501027200

Should be used on the Raincatcher.

Disco Beat Down Headsplitter:

https://backpack.tf/suggestion/599ed92bcf6c753efe040543

Sellers:

52 keys:

http://i.imgur.com/yvipxSY.jpg

Sales at:

52

54

Going with 52-54