I'll continue the Noh Mercies real quick.

Nuts n' Bolts Noh Mercy

Sale 1

https://marketplace.tf/items/361;5;u31

https://manic.tf/keyprice/?at=2018-11-05

$223.66 / $1.77 = 126.36 keys = 126 keys

Sale 2

Sold with an Orbiting Planets Le Party Phantom (Mini at 24 keys) and 3 keys for a Scorching Flames Phantom (open sugg at ~144 keys) = 117 keys

https://backpack.tf/profiles/76561198112336424#!/compare/1536883200/1536969600

https://backpack.tf/profiles/76561198130948401#!/compare/1536883200/1536969600

Scorching Flames Phantom Mini:

https://backpack.tf/suggestion/5c00ff4dcf6c757dbd4711ff

Orbiting Planets Phantom Mini:

Sale 1

Sold for 24 keys

https://backpack.tf/profiles/76561198080179568#!/compare/1538352000/1538438400

https://backpack.tf/profiles/76561198022355711#!/compare/1538438400/1538611200

Only usable sale, taking 24K.

Sale 3

Sold with a Bubbling Well Wrapped Hat and Orbiting Planets Phantom for a Sunbeams Yellow Belt (better used there)

https://backpack.tf/profiles/76561198130948401#!/compare/1537315200/1537401600

https://backpack.tf/profiles/76561198080179568#!/compare/1537315200/1537401600

Sale 4

Can't really tell if it was for 145 or not, untraceable for now

https://backpack.tf/profiles/76561198080179568#!/compare/1537488000/1537574400

https://backpack.tf/profiles/76561197994783413#!/compare/1537488000/1537574400

Sellers:

1 month @ 200 keys, https://backpack.tf/item/510058913

Buyers:

Generic buy orders up until 83.03 keys, none are higher or specifically for this mask.

Sales: 117 / 126

Taking 117-126 keys here, rounded to 115-125 for neatness.

Feel free to report more sales or leave feedback down below!

Cheers!