Resuggestion from https://backpack.tf/suggestion/5e4c7368a04cda549b29ce5c

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https://marketplace.tf/items/tf2/30786;5;u29

https://backpack.tf/item/5147079639

$56 = 34 keys

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https://backpack.tf/profiles/76561198062779400#!/compare/1576627200/1576713600

https://backpack.tf/profiles/76561198002757046#!/compare/1576627200/1576713600

QS to Rubi

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https://backpack.tf/profiles/76561198002757046#!/compare/1576713600/1576800000

https://backpack.tf/profiles/76561198091502579#!/compare/1576713600/1576800000

Unknown amount of keys, sold in one day being in Rubi's possession

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https://backpack.tf/profiles/76561198091502579#!/compare/1577404800/1577491200

https://backpack.tf/profiles/76561198325595749#!/compare/1577318400/1577404800

30 keys

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https://backpack.tf/profiles/76561198325595749#!/compare/1579737600/1579824000

https://backpack.tf/profiles/76561198841365001#!/compare/1579737600/1579824000

Bulk quicksell

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https://mannco.store/item/17869

https://backpack.tf/item/5393455323

$39 = 25 keys

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https://backpack.tf/profiles/76561198401509004#!/compare/1575936000/1576022400

https://backpack.tf/profiles/76561197982057869#!/compare/1575763200/1576022400

Untraceable

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https://backpack.tf/profiles/76561198064658655#!/compare/1582416000/1582502400

https://backpack.tf/profiles/76561198096029688#!/compare/1582416000/1582502400

https://gyazo.com/f4201606c951dbaec6d9306a66ce238d

https://gyazo.com/3fcba127f6ed60e79cb302426194d1f5

Sold for 32 keys after I bought it from mannco for equivalent of 25 keys

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Thank you Vader for these following sales

https://gyazo.com/56f3386125f9b61f3773aa3dc1680c47

https://steamcommunity.com/market/listings/440/Unusual%20Gauzed%20Gaze

https://steamcommunity.com/market/listings/440/Mann%20Co.%20Supply%20Crate%20Key

https://imgur.com/a/5L5PP3D

IDR 657.793 / IDR 32.517 = 20 Keys

or

$43.69 / $2.17 = 20 Keys

https://backpack.tf/profiles/76561198175367966#!/compare/1584835200/1584921600

36 Keys

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Sales

25

30

32

34

36

Buyers at 18-19, excluding 20 as a quicksell

Going with a full range