9 years later...

Item 1:

https://backpack.tf/item/13644477785

Sale 1:

https://backpack.tf/profiles/76561199652290612#!/compare/1726531200/1726617600

https://backpack.tf/profiles/76561199564942025#!/compare/1726531200/1726617600

https://stntrading.eu/item/tf2/Unusual+Nuts+n%27+Bolts+Milkman

Sold to STN for ~9 keys pure = 9 keys

Sale 2:

https://backpack.tf/profiles/76561199564942025#!/compare/1726790400/1726876800

https://backpack.tf/profiles/76561198196269630#!/compare/1726704000/1726876800

https://stntrading.eu/item/tf2/Unusual+Nuts+n%27+Bolts+Milkman

Sold off of STN for 13 keys pure + 37 ref = ~14 keys

https://imgur.com/a/7klWRHG

For context, nomAI purchased this item for me off of STN because I was unable to do so myself. They quickly sold it to me after, so the Nuts n' Bolts Milkman's history does not show nomAI within.

Sale 3:

https://backpack.tf/profiles/76561198196269630#!/compare/1726704000/1726876800

https://backpack.tf/profiles/76561198211674749#!/compare/1726790400/1726876800

I bought it for 15 keys pure = 15 keys

https://imgur.com/a/Z4WMHd0

It was a single transaction - we agreed on 50 keys for the duped Circling Heart Milkman, and 15 keys for the Nuts n' Bolts Milkman.

Sellers:

https://imgur.com/a/XkPc6qF

-No sellers anywhere

-Buyers for any Unusual Milkman @ 12 keys

https://imgur.com/a/hbsHptz

-I had a buy order up @ 14 keys for 2 months prior to my purchase

No recent sales on any other copies. Sales @ 9, 14, and 15 keys. Excluding 9 keys as it falls below buyers.

Rolling with a range of 14-15 keys.