Let's try and price this 1/1

https://backpack.tf/item/10998545370

Sale #1: 52 Keys Pure

https://backpack.tf/profiles/76561198055126332#!/compare/1639353600/1639612800

https://backpack.tf/profiles/76561198220098345#!/compare/1639353600/1639440000

Taking 52

Sale #2: Sold for Static Mist Conga + Painted Strange Snow Sleeves (with parts) + Strange Bruised Bandanna + Polar Forecast Field Practice (dumped) + Festive Fever Balloonibouncer. ~34.25 + ~2.5 + 6 + 21 + 4 = 67.75. Rounding up to 68.

https://backpack.tf/profiles/76561198220098345#!/compare/1640563200/1640649600

https://backpack.tf/profiles/76561198259851349#!/compare/1640563200/1640649600

Static Mist Conga: bought for ~34.25 keys. Checked all items that went to bot. Vintage Killstreak Eyelander (~0.75) + Toxic Terrors Mannorobics (~13 buy orders) + Sparkly Spruce Stagger (~8.5 buy orders) + Strange Lid (~4.5) + Strange Guilden Guardian (~1.5) + 6 keys pure.

https://backpack.tf/profiles/76561198259851349#!/compare/1640390400/1640563200

Taking 68

https://backpack.tf/profiles/76561198259851349#!/compare/1640563200/1640649600

https://backpack.tf/profiles/76561198220098345#!/compare/1639353600/1639440000

Sale #3: Sold with another hat + PRO KS Beggars + 69 pure. Hat's price is outdated currently.

https://backpack.tf/profiles/76561198259851349#!/compare/1642636800/1642723200

https://backpack.tf/profiles/76561198248209800#!/compare/1642377600/1642723200

Range: 52-68