https://backpack.tf/profiles/76561198080179568#!/compare/1580169600/1580256000

https://backpack.tf/profiles/76561198042664724#!/compare/1580169600/1580256000

Seems to be the buyout of 23 keys + 39 refined, rounding to 24

https://bot.tf/stats/listings/MNLKVKPQ

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https://backpack.tf/profiles/76561198097271466#!/compare/1581206400/1581292800

https://backpack.tf/profiles/76561198305494036#!/compare/1581206400/1581292800

Untraceable QS to bot

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https://backpack.tf/profiles/76561198197908394#!/compare/1580083200/1580169600

https://backpack.tf/profiles/76561198323565601#!/compare/1580083200/1580169600

Bulk

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https://backpack.tf/profiles/76561198197908394#!/compare/1580169600/1580256000

https://backpack.tf/profiles/76561198245133510#!/compare/1581638400/1581724800

https://steamcommunity.com/market/listings/440/Unusual%20Polar%20Bear

$56.64 SCM, Feb 14 = 24 keys

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https://backpack.tf/profiles/76561198311498888#!/compare/1583712000/1583798400

https://backpack.tf/profiles/76561198314917034#!/compare/1583625600/1583798400

22 keys, sold by stn.tf

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https://backpack.tf/profiles/76561198314917034#!/compare/1584144000/1584316800

https://backpack.tf/profiles/76561197971174166#!/compare/1584230400/1584316800

Better used on the 5D Fat Man Cap

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https://backpack.tf/profiles/76561197971174166#!/compare/1584316800/1584403200

https://backpack.tf/profiles/76561198146046621#!/compare/1584230400/1584316800

Bulk

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https://backpack.tf/profiles/76561198146046621#!/compare/1584316800/1584403200

https://backpack.tf/profiles/76561198380769556#!/compare/1584316800/1584403200

Untraceable

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https://backpack.tf/profiles/76561198380769556#!/compare/1584403200/1584489600

https://backpack.tf/profiles/76561198113194487#!/compare/1584403200/1584489600

Better used on the Bubbling Team Captain, possibly keys were added to the Polar Bear

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https://backpack.tf/profiles/76561198113194487#!/compare/1584489600/1584662400

https://backpack.tf/profiles/76561198206848157#!/compare/1584576000/1584662400

Untraceable

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https://backpack.tf/profiles/76561198206848157#!/compare/1585612800/1585699200

https://backpack.tf/profiles/76561198972294135#!/compare/1585612800/1585699200

Bulk

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https://gyazo.com/97af84cc3062292f4773556499e4508d

Buyers at 21+

Sales:

22

24

24

Took almost a month for stn.tf to sell the Polar Bear after obtaining it

https://backpack.tf/item/7969076584

Going with 22-24