https://marketplace.tf/items/tf2/30921;5;u3025

$38 = 22 keys

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https://backpack.tf/profiles/76561198065733542#!/compare/1572739200/1572825600

https://backpack.tf/profiles/76561198071082937#!/compare/1572739200/1572825600

Fifth Dimension Elf Esteem - Using there

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https://backpack.tf/profiles/76561197988341178#!/compare/1572048000/1572134400

https://backpack.tf/profiles/76561198045883624#!/compare/1572048000/1572134400

2 Enchanted Runner's Rhythms for 1 Bewitched Runner's Rhythm

Wouldn't be appropriate to use for the Enchanted Runner's Rhythm

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https://backpack.tf/profiles/76561198045883624#!/compare/1572480000/1572652800

https://backpack.tf/profiles/76561198441915077#!/compare/1572134400/1572652800

20 keys - near id 8223704694 in first compare link

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https://backpack.tf/profiles/76561198079200282#!/compare/1572912000/1573171200

https://backpack.tf/profiles/76561198040867177#!/compare/1572825600/1572912000

Crafted

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https://backpack.tf/profiles/76561198173456251#!/compare/1571702400/1571788800

https://backpack.tf/profiles/76561198204215085#!/compare/1570838400/1571788800

Bulk

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https://backpack.tf/profiles/76561198204215085#!/compare/1572220800/1572307200

https://backpack.tf/profiles/76561198021055079#!/compare/1572220800/1572307200

Untraceable

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https://backpack.tf/profiles/76561198045883624#!/compare/1572480000/1572652800

https://backpack.tf/profiles/76561198019257028#!/compare/1572393600/1572480000

13 keys, near id 8219975040 in first compare link

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https://backpack.tf/profiles/76561198311345646#!/compare/1571702400/1572307200

https://backpack.tf/profiles/76561198364702437#!/compare/1571961600/1572048000

Crafted

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Sales

13

20

22

13 looks out of place, but right now there's two sellers at 20 keys, about 2 and 3 weeks old

https://gyazo.com/849d2c356ddda15f61452b6d1e4a17c5

I go 13-20