Item 1

https://backpack.tf/item/10017228721

Sale 1

https://backpack.tf/profiles/76561199118705381#!/compare/1617408000/1619049600

https://backpack.tf/profiles/76561199068819116#!/compare/1616371200/1619049600

-Untrace

Sale 2

https://backpack.tf/profiles/76561199068819116#!/compare/1616371200/1619049600

https://backpack.tf/profiles/76561199044897916#!/compare/1619654400/1619740800

-SCM sale, see below

Sale 3

https://backpack.tf/profiles/76561198850895547#!/compare/1621123200/1621209600

https://backpack.tf/profiles/76561199044897916#!/compare/1619740800/1621209600

-Untrace

Item 2

https://backpack.tf/item/9804314883

Sale 1

https://backpack.tf/profiles/76561198045674218#!/compare/1620432000/1620518400

https://backpack.tf/profiles/76561198069239963#!/compare/1620345600/1620518400

-Swap for a different strange fn frozen aurora rocket

Item 3

https://backpack.tf/item/9664689869

Sale 1

https://backpack.tf/profiles/76561198289101527#!/compare/1615075200/1615161600

https://backpack.tf/profiles/76561198056681334#!/compare/1615075200/1615161600

-Untrace, possibly cash sale

Sale 2

https://backpack.tf/profiles/76561198045674218#!/compare/1615939200/1616025600

https://backpack.tf/profiles/76561198056681334#!/compare/1615939200/1616025600

-Traded for a strange fn raving dead rocket launcher + strange pro ks fn black dahlia pistol; excluding due to a lack of usable sales on the raving dead rocket

Sale 3

https://backpack.tf/profiles/76561198045674218#!/compare/1620432000/1620518400

https://backpack.tf/profiles/76561198069239963#!/compare/1620345600/1620518400

-Swap for a different strange fn frozen aurora rocket

Sale 4

https://backpack.tf/profiles/76561198069239963#!/compare/1621036800/1621123200

https://backpack.tf/profiles/76561198148495750#!/compare/1621036800/1621123200

-Traded for a firehorns/hotrod scatter kit + 5 keys, excluding due to lack of sales on the kit

SCM sale

https://steamcommunity.com/market/pricehistory/?country=US&currency=1&appid=440&market_hash_name=Strange%20Frozen%20Aurora%20Rocket%20Launcher%20(Factory%20New)

-139.592 CAD on Apr 30, with key prices that day being 2.86 CAD = 48.8 keys