Thanks Vege and Shuffle Spy!

https://backpack.tf/item/4281698929

https://backpack.tf/profiles/76561198083134207#!/compare/1661731200/1661904000

Buyout at 300 keys: https://gladiator.tf/time-machine?item=Misty+Skull+Tartan+Tyrolean&at=2022-08-29T03%3A41%3A00.000Z

Sold for WW Blast Defense+5 Max's (taking the 180 key recent sale+142.5, comes total to 322.5 keys)

Blast Defense sale for 180 keys: https://backpack.tf/profiles/76561198058356352#!/compare/1655078400/1655164800

The Blast Defense also potentially sold for 190 Keys https://backpack.tf/profiles/76561198282873040#!/compare/1661990400/1662163200

(Blast Defense currently on sale for 160, makes the low-end range 300 https://backpack.tf/classifieds?item=Blast%20Defense&quality=5&tradable=1&craftable=1&australium=-1&particle=126&killstreak_tier=0)

https://backpack.tf/profiles/76561198062290614#!/compare/1664150400/1665705600 Sold it for a bunch of stuff that caps at 365

https://gladiator.tf/time-machine?item=Misty+Skull+Tartan+Tyrolean&at=2022-10-09T02%3A08%3A00.000Z - Buyout was 365 Keys

Suggesting 300-365 as recommended by Shuffle Spy.