https://backpack.tf/item/3445597356

https://backpack.tf/profiles/76561198075484000#!/compare/1651708800/1651881600

https://backpack.tf/profiles/76561199099521803#!/compare/1651795200/1651881600

Bulk for Golden Pan

https://backpack.tf/profiles/76561199099521803#!/compare/1651968000/1652054400

https://backpack.tf/profiles/76561198096163722#!/compare/1651968000/1652054400

https://steamuserimages-a.akamaihd.net/ugc/1852678988744519561/9291B8BE2EAE2C34649CE2162BBDEC8A7908E7E7/ (Credits Estel)

62 keys for the Neckwear + Memory Leak Brown Bomber, Neckwear was valued at 62 - 40 = 22 keys https://gyazo.com/6468a4484405b459a32afb4870b37809

https://backpack.tf/item/6423495096

https://backpack.tf/profiles/76561198075484000#!/compare/1651708800/1651881600

https://backpack.tf/profiles/76561199099521803#!/compare/1651795200/1651881600

Bulk for Golden Pan

https://backpack.tf/profiles/76561199099521803#!/compare/1651968000/1652054400

https://backpack.tf/profiles/76561198019254407#!/compare/1651968000/1652054400

https://imgur.com/a/MDnlWuA (Credits Estel)

11 keys + BMOC (~10) = 21 keys

Thanks to Russ for help:

Hey Vege! I owned the other 1 of 2 Memory leak Neckwear: https://backpack.tf/item/6423495096

These were also of my couple trades that should still be related:

Sale 1

https://backpack.tf/profiles/76561198064724507#!/compare/1651968000/1652054400

https://backpack.tf/profiles/76561198019254407#!/compare/1651968000/1652054400

I received circling heart wandering wraith, memory leak neckwear headwear plus other adds for my beams Pyromancers with TSFP spell.

When I was discussing with the other traders, they help me appraise the memory leak neckwear as 60 keys. (Credits to Floof and Clu0od)

https://gyazo.com/153a91ad3e64e850409d99a0284e4f22

Sale 2

https://backpack.tf/profiles/76561198064724507#!/compare/1657152000/1657238400

https://backpack.tf/profiles/76561199044973468#!/compare/1657152000/1657238400

I traded the memory leak neckwear for a Miami night dead cone (13 keys) show stopper fan funbar (4.5 keys) plus 40-50 keys in adds-in of taunts, paints and stranges, which is approximately 55-65ish keys in mix overpay.

Sale 3

https://backpack.tf/profiles/76561199044973468#!/compare/1657238400/1657324800

https://backpack.tf/profiles/76561198261047630#!/compare/1657238400/1657324800

1:1 Memory Leak Neckwear Headwear for Aromatica Crabe De Chapeau (Credits to Crispy and Chocolate Pudding)

https://backpack.tf/classifieds?item=Crabe%20de%20Chapeau&quality=5&tradable=1&craftable=1&australium=-1&particle=148&killstreak_tier=0

Aromatica Crabe De Chapeau Sellers range from 42 keys - 60 keys and Buy Orders are at 21.85 keys.

Credits Blaze.xTH3RM4Lx:

https://i.imgur.com/03F0SUI.png - got confirmation from buyer of sale at 22

https://gladiator.tf/time-machine?item=Memory%20Leak%20Neckwear%20Headwear&at=2022-07-17T23:36:39.000Z

https://backpack.tf/profiles/76561198261047630#!/compare/1658016000/1658102400

https://backpack.tf/profiles/76561198050433855#!/compare/1658016000/1658102400 - bulk

https://backpack.tf/profiles/76561199044973468#!/compare/1657238400/1657324800

https://backpack.tf/profiles/76561198261047630#!/compare/1657238400/1657324800 - sold for Aromatica Crabe de Chapeau (will need a mini)

https://backpack.tf/profiles/76561198064724507#!/compare/1657152000/1657238400

https://backpack.tf/profiles/76561199044973468#!/compare/1657152000/1657238400 - sold for all those items (will be high considering it resold for the crabe which has sellers at $45 on marketplace)

https://gladiator.tf/time-machine?item=Memory%20Leak%20Neckwear%20Headwear&at=2022-06-26T01:29:20.000Z

https://backpack.tf/profiles/76561198096163722#!/compare/1656115200/1656201600

https://backpack.tf/profiles/76561198203256620#!/compare/1655510400/1656201600 - looks to have sold for 100 keys

given sales are at 21, 22, 25-30~ (crabe), big item sale, 100 keys

and item sale -> crabe

safe to say 100 is going to be a high outlier and can be excluded. a range with the crabe sale as the high-end will work here.

Aromatica Crabe de Chapeau mini:

https://backpack.tf/profiles/76561199072654974#!/compare/1658966400/1659052800

https://backpack.tf/profiles/76561198081023360#!/compare/1658966400/1659225600

https://gladiator.tf/time-machine?item=Aromatica%20Crabe%20de%20Chapeau&at=2022-07-29T19:06:17.000Z

Probably sold for ~28 keys

So range will work at 21 - 28 keys here.