Resuggest with help from AJ. Thanks!

https://imgur.com/a/Gst01v6

Sold for 30 keys to my friend. He bought on my behalf.

AJ:

Sales in the past 3 months

Item 1

https://backpack.tf/item/6296963728

Sale 1

https://backpack.tf/profiles/76561198048724906#!/compare/1608595200/1608681600

https://backpack.tf/profiles/76561198150669590#!/compare/1608595200/1608681600

Bulk

Sale 2

https://backpack.tf/profiles/76561198150669590#!/compare/1609027200/1609113600

https://backpack.tf/profiles/76561198095022965#!/compare/1609027200/1609200000

Bulk for Roboactive Lucky Shot

Sale 3

https://backpack.tf/profiles/76561198095022965#!/compare/1611360000/1611446400

https://backpack.tf/profiles/76561198043922963#!/compare/1611446400/1611705600

Sold for:

Isotope Specialized Killstreak Piña Polished Iron Bomber (Field-Tested)

10 keys

https://gyazo.com/2421769620912b4060dadccdd1ad9856 - confirmation here, ids are weird

https://gyazo.com/f28820e5d199a442ec5b2d7e882b9482 - buyout 40 keys

No sales on the Pina Iron and you can't really use it there since it'd be far too low

Excluding

Sale 4

https://backpack.tf/profiles/76561198043922963#!/compare/1611705600/1611792000

https://backpack.tf/profiles/76561198061836787#!/compare/1611619200/1611705600

Sold for 28 keys

Sale 5

https://backpack.tf/profiles/76561198061836787#!/compare/1611792000/1611878400

https://backpack.tf/profiles/76561198024486517#!/compare/1611187200/1612051200

Untrace

Sale 6

https://backpack.tf/profiles/76561198024486517#!/compare/1612310400/1612483200

https://backpack.tf/profiles/76561198080179568#!/compare/1612396800/1612483200

25 ref matches

Sale 7

https://gyazo.com/e3666af45d723a679120dcd60d579e7c

Sold for 30 keys

Marketplace sales

https://marketplace.tf/items/tf2/1151;15;u702;w5;pk305;kt-3

Jan 31st - $79.99 / $2.10 = 38.09 keys

This was likely the untrace sale between Frost and grrpow

Sales

28, 30, 38

First we have the sale for ~35/40 given the Pina Iron Bomber is probably worth around 30 ish keys, probably a bit more.

That got dumped for 28 keys to a buyer

Then 28 keys resold for 38 keys

Which then got dumped again to a known qbuy

And then sold for 30 keys

Given this, I would be inclined to exclude 38 keys here and probably range from 28 - 30 keys here

Pastebin:

https://pastebin.com/LD4NuFjv