https://marketplace.tf/items/tf2/30118;5;u57

Oct 13 - $29.99 / $1.88 = 15.95 keys

Dec 1 - $44.99 / $1.76 = 25.56 keys

https://backpack.tf/profiles/76561198075906746#!/compare/1601942400/1602288000

https://backpack.tf/profiles/76561198249609772#!/compare/1601856000/1601942400

3 keys matches

https://backpack.tf/profiles/76561198249609772#!/compare/1601856000/1601942400

https://backpack.tf/profiles/76561198309372865#!/compare/1601856000/1601942400

Untraceable

https://backpack.tf/profiles/76561198309372865#!/compare/1602028800/1602201600

https://backpack.tf/profiles/76561198243271650#!/compare/1602028800/1602115200

17 keys

https://backpack.tf/profiles/76561198243271650#!/compare/1602115200/1602201600

https://backpack.tf/profiles/76561198044925142#!/compare/1602115200/1602201600

Untraceable

https://backpack.tf/profiles/76561198044925142#!/compare/1602806400/1602892800

https://backpack.tf/profiles/76561198156570751#!/compare/1602806400/1602892800

20 keys

https://backpack.tf/profiles/76561198156570751#!/compare/1607040000/1607212800

https://backpack.tf/profiles/76561198139370347#!/compare/1606953600/1607040000

Untraceable

https://backpack.tf/profiles/76561198156272124#!/compare/1602720000/1602806400

https://backpack.tf/profiles/76561198166102098#!/compare/1602720000/1602806400

x keys then some were spent on the bubbling kabuto

from the 2nd compare, 7 keys leaving don't match, so the sale is 25-7 = 18 keys

https://backpack.tf/profiles/76561197970896022#!/compare/1602201600/1602374400

https://backpack.tf/profiles/76561199070258736#!/compare/1602288000/1602374400

Bulk

https://backpack.tf/profiles/76561199070258736#!/compare/1602460800/1602547200

https://backpack.tf/profiles/76561198949471866#!/compare/1602460800/1602547200

Bulk

https://backpack.tf/profiles/76561198949471866#!/compare/1602633600/1602720000

https://backpack.tf/profiles/76561198067893369#!/compare/1602633600/1602720000

Better used on the Omni Orb Eyewear

https://backpack.tf/profiles/76561198067893369#!/compare/1605744000/1605830400

https://backpack.tf/profiles/76561197964171516#!/compare/1605657600/1605830400

5d brain warming wear

has buyers around the common selling point of this item https://gyazo.com/c8f38b739a74a258e0924399dbbb1840

likely ends up high or in range

https://backpack.tf/profiles/76561198190346127#!/compare/1601856000/1602028800

https://backpack.tf/profiles/76561198139370347#!/compare/1601942400/1602028800

26 item stack which is 15 keys and refined

https://backpack.tf/profiles/76561198139370347#!/compare/1602115200/1602201600

https://backpack.tf/profiles/76561198412494625#!/compare/1602028800/1602115200

4 refined matches

https://backpack.tf/profiles/76561198412494625#!/compare/1602201600/1602288000

https://backpack.tf/profiles/76561198285371555#!/compare/1602201600/1602288000

18 keys

https://backpack.tf/profiles/76561198285371555#!/compare/1602460800/1602547200

https://backpack.tf/profiles/76561198286257338#!/compare/1602460800/1602547200

Bulk

https://backpack.tf/profiles/76561198286257338#!/compare/1602460800/1602547200

https://backpack.tf/profiles/76561198071879537#!/compare/1602547200/1602633600

Miami Nights Citizen Cane, better used there

Sales:

15

16

17

18

18

20

26

https://gyazo.com/936a6b03114e3f33d23fa8fd26e77301

A single buyer at 17

Going with 15-20