Terror-Watt Liquidator’s Lid

I guess I could do this one

Sale 1:

http://backpack.tf/profiles/76561198071566056#!/compare/1490572800/1490659200

Added ~.5 keys sweets for a Pro KS Aussie Black Box (17.5)

17.5 - .5 = 17

X = 17

Sale 2:

http://backpack.tf/profiles/76561198255810991#!/compare/1489881600/1490400000

Sold for a bunch of random items worth ~25 keys

X = 25

Sale 3:

http://backpack.tf/profiles/76561198176860775#!/compare/1490227200/1490313600

Sold for 15 keys pure

X = 15

Sale 4:

http://backpack.tf/profiles/76561198119157766#!/compare/1491609600/1491696000

Sold for 8 keys in stranges + Sniper Rifle Skin (6 based on recent scm sales)

8 + 6 = 14

X = 14

25 is an outlier.

Final Price: 14 - 17 keys