Resuggesting due to new evidence provided :) Thank you to Shuffle Spy!

Let's give this a go

Sale at 82 keys - https://imgur.com/a/6QMvpFm

Unusable sales

https://backpack.tf/item/8208887757 - Untracable

https://backpack.tf/profiles/76561198046805468#!/compare/1629072000/1629158400 - nearly 3 months old, mostly untracable. Appears to have sold for a Kill-A-Watt Capo's Capper? likely more

https://backpack.tf/profiles/76561198173442901#!/compare/1631750400/1631836800 - sold for around 52.5 keys, under buyer price. outlier

One important mention

https://backpack.tf/profiles/76561198173442901#!/compare/1629849600/1629936000 - sold for 63 keys, not even 1 key above buyer price. going to keep this as an outlier for now

https://backpack.tf/classifieds?item=Racc+Mann&quality=5&tradable=1&craftable=1&particle=125&australium=-1&killstreak_tier=0 https://imgur.com/a/Df6Wu89 - classifieds, buyers at 61.41-62.17 keys

NEW SALE:

https://mannco.store/item/440-abyssal-aura-unusual-racc-mann - $150 (88 Keys)

https://backpack.tf/item/8715661350

Previous Suggestion: https://backpack.tf/suggestion/618ffadc120ece73f9564677#comment-61ab2e714b8cff7e7845d81c