Item 1:

https://backpack.tf/item/2131159193

Sale 1:

https://backpack.tf/profiles/76561198275478002#!/compare/1631404800/1631491200

https://backpack.tf/profiles/76561198285371555#!/compare/1631404800/1631491200

Frostbite BoA (550) + Wintery Wisp High Five (27) + Strange Professional Killstreak Quick-Fix (8) , Crusaders Crossbow (8), Ubersaw (4) + 2 keys = 599 rounding ~

Taking 600.

Sale 2:

https://backpack.tf/profiles/76561198285371555#!/compare/1631923200/1632009600

https://backpack.tf/profiles/76561198841365001#!/compare/1631923200/1632009600

Sold with 50keys for a Chiro Charmer's Chapeau + Distant dream Towering Pile of Presents.

Chiro Charmers mini:

https://backpack.tf/profiles/76561198285371555#!/compare/1633737600/1633824000

Sold with a tf logo bandana + Isotope Gift Wrapped Iron Bomber + Twinkling Lights Luxury Lounge for a Misty skull yellow belt.

Distant dream Towering Pile of Presents mini:

No usable sales

Excluding.

Sale 3-5:

https://backpack.tf/profiles/76561198040220388#!/compare/1632096000/1632182400

https://backpack.tf/profiles/76561198841365001#!/compare/1632096000/1632182400

Trade back? None of these keys are traceable to the whirly

https://backpack.tf/profiles/76561198040220388#!/compare/1632355200/1632441600

Trade back.

https://backpack.tf/profiles/76561198841365001#!/compare/1634169600/1634342400

https://backpack.tf/profiles/76561198040220388#!/compare/1634169600/1634256000

Trade Back!

Sale 6:

https://backpack.tf/profiles/76561199109683424#!/compare/1637107200/1637280000

250keys down payment

https://backpack.tf/profiles/76561198040220388#!/compare/1637107200/1637366400

550keys.

http://imgur.com/a/RnrRMr9

Taking 800keys

600 - 800keys.

I think the 2nd sale falls pretty nicely in this range.