Blizzardy Storm Conjurer's Cowl

Sales 1-12 credits The Living Tribunal

Sale 1:

https://backpack.tf/profiles/76561198062197943#!/compare/1533254400/1533340800

Sold for 15 keys and 10 ref (15.31)

= 15 keys

Sale 2:

https://backpack.tf/item/3621849649

https://marketplace.tf/items/465;5;u30

Sold on 7th August for $18.02

Key price on 7th August = $1.89

$18.02 / $1.89 = 9.53 keys

Low

Sale 3:

https://backpack.tf/profiles/76561198281755237#!/compare/1528848000/1528934400

Sold for 15 keys and 11 ref (15.34)

= 15 keys

Sale 4:

https://backpack.tf/item/971486668

https://backpack.tf/profiles/76561198131830173#!/compare/1531526400/1531612800

https://backpack.tf/profiles/76561198344491537#!/compare/1531440000/1531612800

Sold for 14 keys

Sale 5:

https://backpack.tf/profiles/76561198385940902#!/compare/1527724800/1527811200

https://backpack.tf/profiles/76561198163334631#!/compare/1527724800/1527811200

Untraceable, 12 keys on one side

Sale 6:

https://backpack.tf/profiles/76561198163334631#!/compare/1527811200/1527897600

https://backpack.tf/profiles/76561198058287022#!/compare/1527811200/1527897600

Sold for 16 keys and 7 ref (16.21)

= 16 keys

Sale 7:

https://backpack.tf/profiles/76561198066247047#!/compare/1528934400/1529020800

https://backpack.tf/profiles/76561198385940902#!/compare/1528934400/1529020800

Sold for 15 keys and 16 ref (15.49)

= 15 keys

Sale 8:

https://backpack.tf/profiles/76561198385940902#!/compare/1532563200/1532649600

https://backpack.tf/profiles/76561198062505598#!/compare/1532649600/1532736000

Sold for 16 keys

Sale 9:

https://backpack.tf/item/1623282673

https://marketplace.tf/items/465;5;u30

Sold on June 15th for $30

Key price on June 15th = $1.94

$30 / $1.94 = 15.46 keys

= 15 keys

Sale 10:

https://backpack.tf/item/752033110

https://backpack.tf/profiles/76561198131633162#!/compare/1528934400/1529020800

Sold for 15 keys and 15 ref (15.46)

= 15 keys

Sale 11:

https://backpack.tf/item/752033110

https://marketplace.tf/items/465;5;u30

Sold on July 21st for $38.90

Key price on July 21st = $1.95

$38.9 / $1.95 = 19.95 keys

= 20 keys

Sale 12:

https://backpack.tf/profiles/76561198085813142#!/compare/1528675200/1528761600

https://backpack.tf/profiles/76561198337734785#!/compare/1528588800/1528675200

Sold for 15 keys and 16 ref (15.49)

= 15 keys

Sale 13: 16 keys pure

https://backpack.tf/profiles/76561198085245102#!/compare/1535932800/1536019200

Sale 14: ~18 keys pure? (Ids don't match said Erik so excluding)

https://backpack.tf/profiles/76561198077691964#!/compare/1536105600/1536192000(edited)

Sale 15: ~19 keys on mptf

https://marketplace.tf/items/465;5;u30

Sales at: 14, 15,15,15,15,15,15, 16,16, 16, (18), 19, 20. Excluding 19 and 20 because they seem a bit high and are also mp.tf sales whereas the lower ones aren't. 14 is low so Ie exclude that too. Excluding 18 because IDs don't match

Suggesting 15-16.