Only Recent Sale (3 months ago)

Ancient Codex Sucker Slug (110 keys) Terror-Watt Virus Doctor (16.5 keys)

https://backpack.tf/profiles/76561197994783413#!/compare/1559260800/1559347200

Also a sale around 6 months ago for $72 (42 keys), but it seems very off compared to the other sales, probably some form of market manipulation/crazy quicksell

https://marketplace.tf/items/tf2/30580;5;u30

Only of these is in circulation.

One never left the unboxers inventory: https://backpack.tf/item/3394906664

The other hasn't been traded in 2 years: https://backpack.tf/item/3458790938

Based off the comments on the last suggestion for this item that I closed around 50 minutes after, here's a mini for the terror-watt virus doctor.

It sold after this transaction for 17 keys pure (due to it being the only spelled one)

https://backpack.tf/profiles/76561198296118777#!/compare/1563753600/1566000000

Also the slug sold for 110 pure (as can be seen from the price suggestion)

https://backpack.tf/suggestion/5cd790cc67807237235e564a

Therefore, this hat was essentially sold for 127 pure.