https://marketplace.tf/items/tf2/30374;5;u58

Oct 25 - $29.99 / $1.85 = 16.21 keys

Nov 8 - $41.99 / $1.81 = 23.20 keys

Nov 30 - $30 / $1.76 = 17.05 keys

Dec 1 - $44.99 / $1.76 = 25.56 keys

https://mannco.store/item/14223

Oct 19 - $44.99 = ~26 keys

Oct 20 - $44.99 = ~26 keys

Oct 22 - $44.99 = ~27 keys

Nov 17 - $44.99 = ~27 keys

i skip tradebacks and such

almost all of the transactions are gambling fodder

https://backpack.tf/profiles/76561198061376237#!/compare/1610150400/1610323200

https://backpack.tf/profiles/76561198043444428#!/compare/1610236800/1610323200

16 keys, histories match

https://backpack.tf/profiles/76561198043444428#!/compare/1610323200/1610409600

https://backpack.tf/profiles/76561198142822631#!/compare/1609200000/1610409600

Untraceable

https://backpack.tf/profiles/76561198142822631#!/compare/1609200000/1610409600

https://backpack.tf/profiles/76561198348210743#!/compare/1610323200/1610409600

Untraceable

https://backpack.tf/profiles/76561198348210743#!/compare/1610323200/1610409600

https://backpack.tf/profiles/76561199075900625#!/compare/1610323200/1610409600

Untraceable

https://backpack.tf/profiles/76561199075900625#!/compare/1610409600/1610496000

https://backpack.tf/profiles/76561198057957692#!/compare/1610409600/1610496000

Bulk

https://backpack.tf/profiles/76561198057957692#!/compare/1610496000/1610582400

https://backpack.tf/profiles/76561198377421246#!/compare/1610496000/1610582400

17 keys

https://backpack.tf/profiles/76561198377421246#!/compare/1610496000/1610582400

https://backpack.tf/profiles/76561198178703599#!/compare/1597881600/1610582400

Untraceable

https://backpack.tf/profiles/76561198178703599#!/compare/1597881600/1610582400

https://backpack.tf/profiles/76561198131066806#!/compare/1610496000/1610582400

Untraceable

https://backpack.tf/profiles/76561198131066806#!/compare/1610496000/1610582400

https://backpack.tf/profiles/76561198966954532#!/compare/1610496000/1610582400

Untraceable

https://backpack.tf/profiles/76561198966954532#!/compare/1610582400/1610668800

https://backpack.tf/profiles/76561199035016731#!/compare/1610582400/1610668800

Untraceable

https://backpack.tf/profiles/76561199035016731#!/compare/1610668800/1610841600

https://backpack.tf/profiles/76561198850274253#!/compare/1610582400/1610668800

Untraceable

https://backpack.tf/profiles/76561198263190057#!/compare/1603670400/1603756800

https://backpack.tf/profiles/76561198339890856#!/compare/1603670400/1603756800

Untraceable

https://backpack.tf/profiles/76561198339890856#!/compare/1603670400/1603756800

https://backpack.tf/profiles/76561198198091931#!/compare/1603670400/1603756800

Only a few keys matches

https://backpack.tf/profiles/76561198198091931#!/compare/1603756800/1603843200

https://backpack.tf/profiles/76561198396499936#!/compare/1603756800/1603843200

Bulk for keys it seems

https://backpack.tf/profiles/76561198396499936#!/compare/1610236800/1610323200

https://backpack.tf/profiles/76561198043444428#!/compare/1610236800/1610323200

15 keys, key histories match

https://backpack.tf/profiles/76561198043444428#!/compare/1610323200/1610409600

https://backpack.tf/profiles/76561198045493149#!/compare/1610323200/1610409600

Untraceable

https://backpack.tf/profiles/76561198045493149#!/compare/1610409600/1610496000

https://backpack.tf/profiles/76561198131066806#!/compare/1610323200/1610409600

Untraceable

https://backpack.tf/profiles/76561198131066806#!/compare/1610409600/1610496000

https://backpack.tf/profiles/76561198986747837#!/compare/1610409600/1610496000

Untraceable

https://backpack.tf/profiles/76561198986747837#!/compare/1610409600/1610496000

https://backpack.tf/profiles/76561198833814622#!/compare/1610409600/1610496000

Untraceable

https://backpack.tf/profiles/76561198833814622#!/compare/1610496000/1610582400

https://backpack.tf/profiles/76561198136536014#!/compare/1597017600/1610582400

Untraceable

https://backpack.tf/profiles/76561198136536014#!/compare/1597017600/1610582400

https://backpack.tf/profiles/76561199096338283#!/compare/1610928000/1610928000

Untraceable

https://backpack.tf/profiles/76561198850274253#!/compare/1603065600/1603152000

https://backpack.tf/profiles/76561198900766998#!/compare/1603065600/1603238400

Untraceable

https://backpack.tf/profiles/76561198900766998#!/compare/1603065600/1603238400

https://backpack.tf/profiles/76561198130720294#!/compare/1603152000/1603238400

It could be 18 keys?

https://backpack.tf/profiles/76561198130720294#!/compare/1603238400/1603324800

https://backpack.tf/profiles/76561198058323007#!/compare/1603238400/1603324800

Untraceable

https://backpack.tf/profiles/76561198058323007#!/compare/1603411200/1603497600

https://backpack.tf/profiles/76561198886850124#!/compare/1603411200/1603497600

Untraceable

https://backpack.tf/profiles/76561198886850124#!/compare/1603411200/1603497600

https://backpack.tf/profiles/76561198847208713#!/compare/1603411200/1603497600

Untraceable

https://backpack.tf/profiles/76561198847208713#!/compare/1603411200/1603497600

https://backpack.tf/profiles/76561198080179568#!/compare/1603411200/1603497600

Untraceable

https://backpack.tf/profiles/76561198080179568#!/compare/1603411200/1603497600

https://backpack.tf/profiles/76561198357093059#!/compare/1603411200/1603497600

https://gyazo.com/4d2486998fa2e01e56780f9b1592c6d9

18 keys

https://backpack.tf/profiles/76561198357093059#!/compare/1604016000/1604102400

https://backpack.tf/profiles/76561198139780260#!/compare/1603756800/1604793600

Untraceable

https://backpack.tf/profiles/76561198875470056#!/compare/1604793600/1604880000

https://backpack.tf/profiles/76561198850274253#!/compare/1604793600/1604880000

Untraceable

https://backpack.tf/profiles/76561198850274253#!/compare/1606003200/1606089600

https://backpack.tf/profiles/76561198155386309#!/compare/1606003200/1606089600

Untraceable

https://backpack.tf/profiles/76561198155386309#!/compare/1606089600/1606176000

https://backpack.tf/profiles/76561198088063575#!/compare/1606089600/1606176000

Untraceable

https://backpack.tf/profiles/76561198088063575#!/compare/1606176000/1606262400

https://backpack.tf/profiles/76561198109506971#!/compare/1606176000/1606262400

Untraceable

https://backpack.tf/profiles/76561198109506971#!/compare/1606262400/1606348800

https://backpack.tf/profiles/76561198115097414#!/compare/1606176000/1606348800

Untraceable

https://backpack.tf/profiles/76561198115097414#!/compare/1606176000/1606348800

https://backpack.tf/profiles/76561198161635287#!/compare/1606262400/1606348800

Bulk for keys

https://backpack.tf/profiles/76561198161635287#!/compare/1606435200/1606521600

https://backpack.tf/profiles/76561198402495238#!/compare/1606435200/1606521600

Untraceable

https://backpack.tf/profiles/76561198402495238#!/compare/1606608000/1606694400

https://backpack.tf/profiles/76561198091502579#!/compare/1606608000/1606694400

Untraceable

https://backpack.tf/profiles/76561198091502579#!/compare/1606608000/1606694400

https://backpack.tf/profiles/76561198873502245#!/compare/1606780800/1606867200

Untraceable

https://backpack.tf/profiles/76561198873502245#!/compare/1606780800/1606867200

https://backpack.tf/profiles/76561198191234989#!/compare/1606348800/1606867200

Untraceable

https://backpack.tf/profiles/76561198191234989#!/compare/1606348800/1606867200

https://backpack.tf/profiles/76561198302622358#!/compare/1606780800/1606867200

Untraceable

https://backpack.tf/profiles/76561198302622358#!/compare/1606953600/1607040000

https://backpack.tf/profiles/76561198453530349#!/compare/1606953600/1607040000

Untraceable

https://backpack.tf/profiles/76561198453530349#!/compare/1609718400/1609804800

https://backpack.tf/profiles/76561198154700747#!/compare/1609718400/1609804800

Untraceable

https://backpack.tf/profiles/76561198154700747#!/compare/1610064000/1610150400

https://backpack.tf/profiles/76561198297397997#!/compare/1607644800/1610150400

Untraceable

https://backpack.tf/profiles/76561198297397997#!/compare/1610150400/1610928000

https://backpack.tf/profiles/76561198986747837#!/compare/1610064000/1610150400

Untraceable

https://backpack.tf/profiles/76561198986747837#!/compare/1610150400/1610236800

https://backpack.tf/profiles/76561198155386309#!/compare/1610150400/1610236800

Untraceable

https://backpack.tf/profiles/76561198155386309#!/compare/1610236800/1610323200

https://backpack.tf/profiles/76561198259000762#!/compare/1610236800/1610323200

Untraceable

https://backpack.tf/profiles/76561198259000762#!/compare/1610236800/1610323200

https://backpack.tf/profiles/76561198043444428#!/compare/1610236800/1610323200

Untraceable

https://backpack.tf/profiles/76561198043444428#!/compare/1610323200/1610409600

https://backpack.tf/profiles/76561198053503845#!/compare/1609977600/1610409600

Untraceable

https://backpack.tf/profiles/76561198053503845#!/compare/1609977600/1610409600

https://backpack.tf/profiles/76561198040565316#!/compare/1610323200/1610409600

Untraceable

https://backpack.tf/profiles/76561199043177646#!/compare/1610323200/1610409600

https://backpack.tf/profiles/76561198142822631#!/compare/1609200000/1610409600

https://gladiator.tf/listings/5ffbd38d3e90df3638ab7328

16 keys

https://backpack.tf/profiles/76561198142822631#!/compare/1609200000/1610409600

https://backpack.tf/profiles/76561198348210743#!/compare/1610323200/1610409600

Untraceable

https://backpack.tf/profiles/76561198348210743#!/compare/1610323200/1610409600

https://backpack.tf/profiles/76561199075900625#!/compare/1610323200/1610409600

Untraceable

https://backpack.tf/profiles/76561199075900625#!/compare/1610409600/1610496000

https://backpack.tf/profiles/76561198057957692#!/compare/1610409600/1610496000

Bulk

https://backpack.tf/profiles/76561198057957692#!/compare/1610496000/1610582400

https://backpack.tf/profiles/76561198201364639#!/compare/1609891200/1610668800

17 keys

https://backpack.tf/profiles/76561198201364639#!/compare/1609891200/1610668800

https://backpack.tf/profiles/76561198306756308#!/compare/1610582400/1610668800

Untraceable

https://backpack.tf/profiles/76561198306756308#!/compare/1610582400/1610668800

https://backpack.tf/profiles/76561198869390792#!/compare/1610582400/1610668800

Untraceable

https://backpack.tf/profiles/76561198869390792#!/compare/1610582400/1610668800

https://backpack.tf/profiles/76561198157836058#!/compare/1610323200/1610668800

Untraceable

https://backpack.tf/profiles/76561198138212832#!/compare/1603670400/1603756800

https://backpack.tf/profiles/76561198134085662#!/compare/1603670400/1603756800

Spellbound Aspect Taunt: Bucking Bronco which actually ends up under buyers

https://gyazo.com/ca1731030dd8ec0a67482447ee026b62

https://backpack.tf/profiles/76561198134085662#!/compare/1603670400/1603756800

https://backpack.tf/profiles/76561198259283110#!/compare/1603670400/1603756800

Added 3 keys for Cloud 9 Honcho (18 keys) = 15 keys

https://backpack.tf/suggestion/5fca1b741a498958bc02d14c

https://backpack.tf/profiles/76561198259283110#!/compare/1603756800/1603843200

https://backpack.tf/profiles/76561198212750627#!/compare/1603670400/1603756800

14 keys, 8 refined

https://backpack.tf/profiles/76561198155386309#!/compare/1605571200/1605657600

https://backpack.tf/profiles/76561198871901347#!/compare/1605484800/1605657600

Untraceable

https://backpack.tf/profiles/76561198871901347#!/compare/1606521600/1606867200

https://backpack.tf/profiles/76561198846566478#!/compare/1606780800/1606867200

Not exactly bulk but I don't know what it is lol

https://backpack.tf/profiles/76561198846566478#!/compare/1606867200/1606953600

https://backpack.tf/profiles/76561198336377365#!/compare/1606780800/1606953600

Candy Cane

https://backpack.tf/profiles/76561198336377365#!/compare/1606953600/1607299200

https://backpack.tf/profiles/76561198986747837#!/compare/1606867200/1606953600

Untraceable

https://backpack.tf/profiles/76561198986747837#!/compare/1606953600/1607040000

https://backpack.tf/profiles/76561198088063575#!/compare/1606953600/1607040000

Untraceable

https://backpack.tf/profiles/76561198088063575#!/compare/1607040000/1607126400

https://backpack.tf/profiles/76561198063372917#!/compare/1606953600/1607040000

Untraceable

https://backpack.tf/profiles/76561198063372917#!/compare/1607040000/1607299200

https://backpack.tf/profiles/76561198155386309#!/compare/1606780800/1607040000

Untraceable

https://backpack.tf/profiles/76561198155386309#!/compare/1607040000/1607126400

https://backpack.tf/profiles/76561198117090444#!/compare/1606953600/1607040000

Untraceable

https://backpack.tf/profiles/76561198117090444#!/compare/1607040000/1607126400

https://backpack.tf/profiles/76561198986747837#!/compare/1606953600/1607040000

Untraceable

https://backpack.tf/profiles/76561198986747837#!/compare/1607040000/1607126400

https://backpack.tf/profiles/76561198838687963#!/compare/1606435200/1607126400

Untraceable

https://backpack.tf/profiles/76561198838687963#!/compare/1607126400/1607212800

https://backpack.tf/profiles/76561199038727876#!/compare/1607040000/1607126400

Untraceable

https://backpack.tf/profiles/76561199038727876#!/compare/1607126400/1607212800

https://backpack.tf/profiles/76561198037674114#!/compare/1606867200/1607385600

Untraceable

https://backpack.tf/profiles/76561198037674114#!/compare/1608163200/1608249600

https://backpack.tf/profiles/76561198850274253#!/compare/1608076800/1608163200

Untraceable

https://backpack.tf/profiles/76561198850274253#!/compare/1608336000/1608422400

https://backpack.tf/profiles/76561198796341173#!/compare/1607990400/1608940800

Untraceable

Sales:

14

15

15

16

16

16

17

17

17

18

18?

23

26

26

26

27

27

Classifieds:

https://gyazo.com/bca9624795423e4549a97d4a259f1555

young at 19, has owned for three days https://backpack.tf/item/7957431122

21 keys 5 days unbumped

24 keys 6 days

25 keys 4 months

25 keys 2 days

all of the sales above 18 are marketplace/mannco.store sales

there are actually some pure sales in the mix, from 15-17

14 is actually buyer price

let's go with 15-18 keys