Sale 1:

Sold for 9 keys

Seller: https://backpack.tf/profiles/76561198080179568#!/compare/1591142400/1591228800

Buyer: https://backpack.tf/profiles/76561198176498187#!/compare/1591228800/1591488000

https://backpack.tf/item/7955634980

9 keys

Sale 2:

Sold for 7 keys + 23 ref

Seller: https://backpack.tf/profiles/76561198080179568#!/compare/1587859200/1587945600

Buyer: https://backpack.tf/profiles/76561198873018311#!/compare/1587859200/1587945600

https://backpack.tf/item/7955634980

7.5 keys

Sale 3:

Sold for 7 keys

Seller: https://backpack.tf/profiles/76561198873018311#!/compare/1588464000/1588723200

Buyer: https://backpack.tf/profiles/76561198080179568#!/compare/1588377600/1588464000

https://backpack.tf/item/7955634980

7 keys

Marketplace Sales:

https://marketplace.tf/items/tf2/377;5;u57

$18.98, March 17th

$18.98, March 20th

$18.98, March 23rd

$22.22, April 3rd

$19.99, May 12th

$19.98, May 12th

https://backpack.tf/item/7956019022 - March 17th

Can’t find the other histories. No snapshot for March 17th.

http://manic.tf/keyprice?at=2020-03-17&price=18.98 - $18.98 / $1.69 = 11.23 keys

http://manic.tf/keyprice?at=2020-03-20&price=18.98 - $18.98 / $1.68 = 11.30 keys

http://manic.tf/keyprice?at=2020-03-23&price=18.98 - $18.98 / $1.68 = 11.30 keys

http://manic.tf/keyprice?at=2020-04-03&price=22.22 - $22.22 / $1.70 = 13.07 keys

http://manic.tf/keyprice?at=2020-05-12&price=19.99 - $19.99 / $1.90 = 10.52 keys

http://manic.tf/keyprice?at=2020-05-12&price=19.98 - $19.98 / $1.90 = 10.52 keys

https://bot.tf/stats/listings/Y79JQNQW - Only snapshot we have, does not help us here. B/O at 15 may have been one of the marketplace sales.

After rouding, we have:

10.5 keys (2x)

11.5 keys (2x)

13 keys

Other Sales:

https://backpack.tf/item/7957476008 (#1-3)

https://backpack.tf/item/7956019022 (#4-7)

https://backpack.tf/item/7957070270 - scammer

#1

Untraceable

https://backpack.tf/profiles/76561198443600144#!/compare/1588204800/1591228800

https://backpack.tf/profiles/76561199000887790#!/compare/1591228800/1591315200 - no useful compare

#2

Untraceable

https://backpack.tf/profiles/76561199000887790#!/compare/1591228800/1591660800

https://backpack.tf/profiles/76561198092382473#!/compare/1589155200/1591228800

#3

Untraceable

https://backpack.tf/profiles/76561198092382473#!/compare/1589155200/1591228800

https://backpack.tf/profiles/76561198850178158#!/compare/1591488000/1591574400

#4

Untraceable

https://backpack.tf/profiles/76561198193027585#!/compare/1584489600/1584576000

https://backpack.tf/profiles/76561198983255976#!/compare/1584057600/1584489600

#5

Untraceable

https://backpack.tf/profiles/76561198311498888#!/compare/1589587200/1589673600

https://backpack.tf/profiles/76561198325711880#!/compare/1511913600/1590796800

2 keys + some metal match

#6

Untraceable

https://backpack.tf/profiles/76561198325711880#!/compare/1591574400/1591660800

https://backpack.tf/profiles/76561198118842981#!/compare/1591488000/1591574400

#7

Bulk

https://backpack.tf/profiles/76561198118842981#!/compare/1591488000/1591574400

https://backpack.tf/profiles/76561198919096070#!/compare/1591488000/1591574400

Sellers:

https://i.imgur.com/TpfRgpa.png

https://backpack.tf/item/7957476008 - 9 keys

https://backpack.tf/item/6390461412 - 9.5 keys

https://backpack.tf/item/2215214722 - 100 keys

Sales at:

7

7.5

9

10.5 (2x)

11

11.5 (2x)

13

Several buyers higher than 7, excluding 7.

4 month old seller at 9.5, which is lower than all the marketplace sales. Additionally, marketplace sales are not an accurate representation of an item’s pure value. Excluding 10.5 and above.

Taking 7.5-9.