Take 2

Sale 1: Sold together with Sunbeams Bloke's Bucket Hat (30.5) + Neutron Star Wing Mann (10) + 1 key pure for Cloud 9 Virtual Viewfinder (200) --> 158.5; rounding to 159

https://backpack.tf/profiles/76561198036046859#!/compare/1496102400/1496448000

Sale 2: Untraceabele

https://backpack.tf/profiles/76561198188087979#!/compare/1496534400/1497139200

https://backpack.tf/profiles/76561198167149339#!/compare/1497052800/1497139200

Sale 3: Bulk for vintage Buds

https://backpack.tf/profiles/76561198182213262#!/compare/1493769600/1495152000

Sale 4: 98 keys pure https://backpack.tf/profiles/76561198167149339#!/compare/1503187200/1503273600 (credits Marty birdman); excluding was QS

Sale 5: 250 USD = ~126 keys.

https://marketplace.tf/items/1172;5;u3001

Other sales either involve scrap.tf or banned users.

Sales at 126, 159 (and QS at 98)

Sellers at 270+ on classifieds; buyer at 41 on classifieds. http://i.imgur.com/9gT9E4v.png

Suggesting range from 126 to 160 (not rounding 126 due to being a pure sale)

For discussion and previous suggestion see here: https://backpack.tf/suggestion/59824f92cf6c7545a13c3a0e