Sale 1: ~14 Keys Pure.

https://backpack.tf/profiles/76561198404123953#!/compare/1550793600/1551052800

https://backpack.tf/profiles/76561198191933566#!/compare/1550793600/1551139200

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Sale 2: Untrace/Low.

https://backpack.tf/profiles/76561198094085281#!/compare/1557964800/1558483200

https://backpack.tf/profiles/76561198065132511#!/compare/1557878400/1558224000

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Marketplace.tf Sales:

https://marketplace.tf/items/30915;5;u7

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Sale 3: ~14 Keys.

Mar 29

$25.82 / $1.79 = 14.42 keys

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Including Sales: 14/14

Going With 14 Keys Flat.

Thanks to scourge for the premium!