https://marketplace.tf/items/tf2/30708;5;u106

July 31 - $88.89 / $1.92 = 46.30 keys

Sept 5 - $85.00 / $1.83 = 46.45 keys

Sept 16 - $89.99 / $1.85 = 48.64 keys

https://backpack.tf/item/6318119919

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https://backpack.tf/profiles/76561198104037014#!/compare/1597449600/1597795200

https://backpack.tf/profiles/76561198132729284#!/compare/1597017600/1597449600

A gift

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https://backpack.tf/profiles/76561198044800742#!/compare/1599868800/1599955200

https://backpack.tf/profiles/76561198198091931#!/compare/1599955200/1600041600

Added for Green Energy Peacenik Ponytail, better used there

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https://backpack.tf/profiles/76561198198091931#!/compare/1599955200/1600041600

https://backpack.tf/profiles/76561198050236510#!/compare/1600214400/1600300800

This is the September 16 Marketplace sale

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https://backpack.tf/profiles/76561198084126218#!/compare/1601164800/1601251200

https://backpack.tf/profiles/76561198153789411#!/compare/1601164800/1601251200

Bulk

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https://backpack.tf/profiles/76561198087099341#!/compare/1597276800/1597363200

https://backpack.tf/profiles/76561198153789411#!/compare/1597190400/1597363200

Tesla Coil Nasty Norsemann (30 keys) + 10 keys

https://backpack.tf/suggestion/5f727b681737641d3c4e8179

42 key buyout https://bot.tf/stats/listings/MQ02X9L3

Sale = 40 keys

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https://backpack.tf/profiles/76561198451791563#!/compare/1597449600/1600128000

https://backpack.tf/profiles/76561198363395191#!/compare/1597363200/1597449600

Untraceable

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Sales:

40

46

46

49

40-49