Resuggestion from https://backpack.tf/suggestion/5eab1175169ddb3d7d687e62

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https://marketplace.tf/items/tf2/31058;5;u17

$79.99 = 45 keys

$89.99 = 51 keys - 43 key buyout https://imgur.com/a/LbQU0JW

$74.99 = 43 keys

$30.00 = Buy order

$41.02 = Buy order

https://backpack.tf/item/8283309907

https://backpack.tf/item/8283651976

https://backpack.tf/item/8323292104

https://backpack.tf/profiles/76561198177059485#!/compare/1587772800/1588204800

https://backpack.tf/profiles/76561198064658655#!/compare/1587945600/1588032000

This is the Marketplace buy order on April 28 (I got it)

https://backpack.tf/profiles/76561198400016798#!/compare/1582588800/1583193600

https://backpack.tf/profiles/76561198056571743#!/compare/1583712000/1584403200

This looks like the March 10 Marketplace sale

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https://backpack.tf/profiles/76561198064658655#!/compare/1588118400/1588204800

https://backpack.tf/profiles/76561198164036774#!/compare/1588118400/1588204800

45 keys

https://gyazo.com/c1f11c3490645153cd6f0aa37db6c02c

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https://backpack.tf/profiles/76561198400016798#!/compare/1582588800/1583193600

https://backpack.tf/profiles/76561198056571743#!/compare/1584576000/1584662400

Added Uncraftable Summer Hat for Miami Nights Prehistoric Pullover + 3 keys, better used there as it has no price either

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https://backpack.tf/profiles/76561198055622215#!/compare/1585958400/1586044800

https://backpack.tf/profiles/76561198176022675#!/compare/1585958400/1586044800

Untraceable

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https://backpack.tf/profiles/76561198185004411#!/compare/1583107200/1583193600

https://backpack.tf/profiles/76561198295486957#!/compare/1583193600/1583280000

Untraceable

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https://backpack.tf/profiles/76561198059021831#!/compare/1583539200/1583798400

https://backpack.tf/profiles/76561198097499917#!/compare/1583798400/1583884800

Untraceable

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https://backpack.tf/profiles/76561198097499917#!/compare/1583884800/1583971200

https://backpack.tf/profiles/76561197970682735#!/compare/1583712000/1583971200

Green Energy Bat Hat (34 keys) + Aces High Hong Kong Cone (26 keys) + 2 keys

Sale = 62 keys

65 key buyout https://bot.tf/stats/listings/4KV583X8

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Sales

43 44 45 45 62

62 looks high right now