Sales 1-7:

https://marketplace.tf/items/tf2/30647;5;u95

$35 / $1.82 = 19.23 keys

$35 / $1.82 = 19.23 keys

$36 / $1.81 = 19.89 keys

$21.6 / $1.81 = 11.93 keys [ under current buy orders: https://imgur.com/a/1zcoOM4 ]

$34.99 / $1.81 = 19.33 keys

$35.55 / $1.81 = 19.64 keys

$44 / $1.80 = 24.44 keys

Sale 8:

caps at 18 keys b/o: https://imgur.com/a/leF5URN

Blizzardy Toque(18) + 1 key

https://backpack.tf/profiles/76561198280802716#!/compare/1573257600/1573344000

https://backpack.tf/profiles/76561198342161127#!/compare/1573257600/1573344000

Toque: https://backpack.tf/suggestion/5dc88ad167807219697b6501

Sale 9:

untrace

https://backpack.tf/profiles/76561198337734785#!/compare/1567123200/1567209600

https://backpack.tf/profiles/76561198060193542#!/compare/1566864000/1567468800

Sale 10:

9 keys + 6 ref

under current buy orders: https://imgur.com/a/1zcoOM4

https://backpack.tf/profiles/76561198060193542#!/compare/1570665600/1570752000

https://backpack.tf/profiles/76561198454615761#!/compare/1570579200/1570665600

Sale 11:

14 keys + 8 ref

under buy orders at time of sale: https://imgur.com/a/uK4IrDs

https://backpack.tf/profiles/76561198148983233#!/compare/1565740800/1565827200

https://backpack.tf/profiles/76561198335791307#!/compare/1565740800/1565827200

Sale 12:

untrace

https://backpack.tf/profiles/76561198335791307#!/compare/1572480000/1572566400

https://backpack.tf/profiles/76561198308225068#!/compare/1572480000/1572566400

Sale 13:

sold for Gfetti Gentleman's Ushanka

no mini for ushanka, all sales gamble/bulk

also this sale cant be used to price ushanka as there is an unsold at 15 for 2 months

https://backpack.tf/profiles/76561198880879698#!/compare/1568678400/1569110400

https://backpack.tf/profiles/76561198148773566#!/compare/1569110400/1573344000

Sale 14:

untrace

https://backpack.tf/profiles/76561198880879698#!/compare/1569283200/1569369600

https://backpack.tf/profiles/76561198972294135#!/compare/1569283200/1569369600

Sale 15:

Bulk for burning head hedge

https://backpack.tf/profiles/76561198174009537#!/compare/1569283200/1569369600

https://backpack.tf/profiles/76561198972294135#!/compare/1569283200/1569369600

Sale 16:

Bulk for double spelled RL

https://backpack.tf/profiles/76561198174009537#!/compare/1570406400/1570492800

https://backpack.tf/profiles/76561198876584040#!/compare/1570406400/1570492800

Sale 17:

untrace

https://backpack.tf/profiles/76561198055993921#!/compare/1571356800/1571702400

https://backpack.tf/profiles/76561198454615761#!/compare/1571702400/1571788800

==============================================================================

Sales:

9,12,14,18,19,19,19,20,20,24

24 a high outlier compared to other sales here