I'm price suggesting this for a friend. It is also my first price suggestion, so feel free to give me any future advice or otherwise necessary information.

There's 2 in existence and one of them hasn't moved inventory in the past 7 years as seen in the history below:

https://backpack.tf/item/4195809433

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As for the one's history that has recently been traded:

https://backpack.tf/item/10280393905

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1st most recent sale:

Screenshot of trade - https://cdn.discordapp.com/attachments/847788314119372850/854428137394929684/dreadknot2.png

1st comparison - ​https://backpack.tf/profiles/76561198246680606#!/compare/1623196800/1623283200

2nd comparison - https://backpack.tf/profiles/76561198212497608#!/compare/1623196800/1623283200

Note: the 45 keys does not show up in the 1st comparison as having been removed, and the Dread Knot does not seem to register as having existed in the second comparison's owner's backpack even though the item history itself is capable of showing such.

It was sold for 45 keys pure.

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2nd most recent sale:

1st comparison - https://backpack.tf/profiles/76561198212497608#!/compare/1623196800/1623283200

2nd comparison - https://backpack.tf/profiles/76561198935532676#!/compare/1623196800/1623283200

Note: Having again used the same comparison from the 1st most recent sale, the Dread Knot does again not appear in the aforementioned backpack.

It was traded + 46 keys for 2 Miami Nights Cotton Heads which I would to assume would have been considered as 45 keys a piece, making the Dread Knot having been valued at 44 keys.

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All other sales are more than 4 months old, making these the two only most recent sales.

This makes the two only most recent sales for the Dread Knot 44 and 45 keys.