https://marketplace.tf/items/tf2/30922;5;u3044

Oct 4 - $49.99 / $1.85 = 27.02 keys

Oct 19 - $24.75 / $1.87 = 13.24 keys

Oct 23 - $15.05 / $1.86 = 8.09 keys

Oct 31 - $9 / $1.83 = 4.92 keys

Nov 1 - $17.79 / $1.83 = 9.72 keys

Nov 11 - $16.58 / $1.80 = 9.21 keys

Nov 12 - $8.2 / $1.79 = 4.58 keys

Nov 23 - $8 / $1.75 = 4.57 keys

Nov 28 - $18 / $1.76 = 10.23 keys

Dec 7 - $14 / $1.76 = 7.95 keys

Dec 27 - $18 / $2.17 = 8.29 keys

https://backpack.tf/item/9212025875

https://backpack.tf/item/8874795147

https://backpack.tf/item/6823970402

https://backpack.tf/item/6476990422

https://backpack.tf/profiles/76561198055621547#!/compare/1605139200/1605398400

https://backpack.tf/profiles/76561197963500354#!/compare/1605052800/1605139200

Untraceable

https://backpack.tf/profiles/76561199085020167#!/compare/1602115200/1602201600

https://backpack.tf/profiles/76561198040073503#!/compare/1602115200/1602201600

10 keys 5 refined

https://backpack.tf/profiles/76561198040073503#!/compare/1603238400/1603324800

https://backpack.tf/profiles/76561198199264815#!/compare/1603152000/1606176000

Untraceable

https://backpack.tf/item/8986020843

https://backpack.tf/item/8406182620

https://backpack.tf/item/8364087475

https://backpack.tf/item/8353288099

https://backpack.tf/item/7784179986

https://backpack.tf/item/6528878503

https://backpack.tf/item/6478207893

not scrap.tf unusual bot = still unique

https://backpack.tf/profiles/76561198212461467#!/compare/1605830400/1606867200

https://backpack.tf/profiles/76561198023051867#!/compare/1606780800/1606867200

Untraceable

https://backpack.tf/profiles/76561198123346908#!/compare/1602720000/1602806400

https://backpack.tf/profiles/76561198832761255#!/compare/1602720000/1602806400

Still Unique

https://backpack.tf/profiles/76561198832761255#!/compare/1602720000/1602806400

https://backpack.tf/profiles/76561198396141036#!/compare/1602633600/1602892800

Still unique

https://backpack.tf/profiles/76561198396141036#!/compare/1602892800/1603843200

https://backpack.tf/profiles/76561198069707880#!/compare/1602806400/1602892800

Still unique

https://backpack.tf/profiles/76561198286056380#!/compare/1603756800/1603843200

https://backpack.tf/profiles/76561198028203479#!/compare/1603756800/1603843200

Untraceable

https://backpack.tf/profiles/76561198028203479#!/compare/1603929600/1604016000

https://backpack.tf/profiles/76561198382290208#!/compare/1603929600/1604016000

Untraceable

https://backpack.tf/profiles/76561198382290208#!/compare/1604102400/1604188800

https://backpack.tf/profiles/76561198210225228#!/compare/1604102400/1604275200

Untraceable

https://backpack.tf/profiles/76561198444320809#!/compare/1603065600/1603324800

https://backpack.tf/profiles/76561198152838622#!/compare/1603324800/1604016000

Planets Head of Defense

but it looks like the head of defense was traded back anyway https://backpack.tf/item/9193006047

https://backpack.tf/profiles/76561198066413959#!/compare/1602201600/1602288000

https://backpack.tf/profiles/76561198064658655#!/compare/1602201600/1602288000

Bulk

https://backpack.tf/profiles/76561198064658655#!/compare/1606435200/1606521600

https://backpack.tf/profiles/76561198085892972#!/compare/1606435200/1606521600

https://gyazo.com/d2af9c6c1f74c9f784a9991f248625c5

8 keys

https://backpack.tf/profiles/76561198085892972#!/compare/1606608000/1606780800

https://backpack.tf/profiles/76561198005032783#!/compare/1606608000/1606694400

Just refined matches

https://backpack.tf/profiles/76561198005032783#!/compare/1607299200/1607385600

https://backpack.tf/profiles/76561198163673490#!/compare/1607299200/1607385600

Untraceable

https://backpack.tf/profiles/76561198977776001#!/compare/1601251200/1601942400

https://backpack.tf/profiles/76561198019257028#!/compare/1601856000/1601942400

Bulk for keys

https://backpack.tf/profiles/76561198873140319#!/compare/1603411200/1603584000

https://backpack.tf/profiles/76561198883610801#!/compare/1603411200/1603497600

Unusualified

https://backpack.tf/profiles/76561198947812176#!/compare/1603324800/1603411200

https://backpack.tf/profiles/76561199073475515#!/compare/1603324800/1603411200

Still unique

https://backpack.tf/profiles/76561199073475515#!/compare/1603411200/1603497600

https://backpack.tf/profiles/76561198088764747#!/compare/1603324800/1603497600

Unusualified

https://backpack.tf/profiles/76561198088764747#!/compare/1603584000/1603843200

https://backpack.tf/profiles/76561198280925326#!/compare/1603584000/1603756800

Untraceable

https://backpack.tf/profiles/76561198280925326#!/compare/1607212800/1607299200

https://backpack.tf/profiles/76561198131081286#!/compare/1607212800/1607385600

Bulk

https://backpack.tf/profiles/76561198131081286#!/compare/1607558400/1607644800

https://backpack.tf/profiles/76561198379695384#!/compare/1607558400/1607644800

16 keys for 2 taunts

https://backpack.tf/profiles/76561198379695384#!/compare/1607644800/1607731200

https://backpack.tf/profiles/76561199079578227#!/compare/1607731200/1608163200

Arcane Assistance Taunt: The Soviet Strongarm

https://backpack.tf/profiles/76561199079578227#!/compare/1607731200/1607817600

https://backpack.tf/profiles/76561198313784200#!/compare/1607731200/1607817600

added for tf logo panama, better used there

https://backpack.tf/profiles/76561198313784200#!/compare/1608163200/1608249600

https://backpack.tf/profiles/76561198839147348#!/compare/1608163200/1608249600

6 keys 45 refined

https://backpack.tf/profiles/76561198311587653#!/compare/1601510400/1601596800

https://backpack.tf/profiles/76561198019257028#!/compare/1601596800/1601856000

Still unique

https://backpack.tf/profiles/76561198799810355#!/compare/1602201600/1602460800

https://backpack.tf/profiles/76561199039289574#!/compare/1602288000/1602374400

Unusualified

https://backpack.tf/profiles/76561198323281330#!/compare/1601856000/1601942400

https://backpack.tf/profiles/76561198223928572#!/compare/1599609600/1601942400

Untraceable, went through scrap auction

https://backpack.tf/profiles/76561198223928572#!/compare/1602460800/1602720000

https://backpack.tf/profiles/76561198120674183#!/compare/1601424000/1602633600

16 keys

https://backpack.tf/profiles/76561198120674183#!/compare/1606435200/1606867200

https://backpack.tf/profiles/76561198120643050#!/compare/1606694400/1606780800

only 2 keys leaving 2nd compare match

https://backpack.tf/profiles/76561198195342089#!/compare/1603584000/1604275200

https://backpack.tf/profiles/76561198252483678#!/compare/1604102400/1604275200

Untraceable

https://backpack.tf/profiles/76561198252483678#!/compare/1608768000/1608854400

https://backpack.tf/profiles/76561198357455406#!/compare/1608854400/1608940800

Bulk

https://backpack.tf/profiles/76561198026129220#!/compare/1603411200/1603497600

https://backpack.tf/profiles/76561198405639592#!/compare/1603929600/1604707200

Looks like a Marketplace sale

https://backpack.tf/profiles/76561198286056380#!/compare/1603670400/1603756800

https://backpack.tf/profiles/76561198119675339#!/compare/1603584000/1603756800

Unusualified

https://backpack.tf/profiles/76561198190084707#!/compare/1604707200/1604793600

https://backpack.tf/profiles/76561197963500354#!/compare/1604707200/1604793600

Unusualified

Sales:

4.5

4.5

5

7

8

8

8

8.5

9

9.5

10

10

13

16

27

Sellers:

https://gyazo.com/e8a535c73ebaa1ec2107e9a11a4d03b8

8.75-9 from 3-22 days old

Buyers up to 5.3 keys

So maybe let's go 7-8.5?