Later.

SALE 1

Sold for 14 keys

https://backpack.tf/profiles/76561198094028499#!/compare/1547424000/1565136000

https://backpack.tf/profiles/76561198069137737#!/compare/1565049600/1565136000

SALE 2

Sold for 21 keys

https://backpack.tf/profiles/76561198029371596#!/compare/1565308800/1565481600

https://backpack.tf/profiles/76561198121043716#!/compare/1565481600/1565740800

SALE 3

Sold for 18 keys + 36 refined

https://backpack.tf/profiles/76561198031743044#!/compare/1561248000/1561334400

https://backpack.tf/profiles/76561198021055079#!/compare/1561248000/1561334400

Rounds up to 19 keys

SALE 4

Sold for 18 keys + strange professional ks loose cannon

https://backpack.tf/profiles/76561198021055079#!/compare/1561939200/1562025600

https://backpack.tf/profiles/76561198223331996#!/compare/1562025600/1562112000

18 + 4.55 = 22.55 rounding to 23 keys

B/o was 21 keys

https://bot.tf/stats/listings/4KKP8DE4

Capping at 21 keys.

Loose cannon mini

Sellers and buyers

https://gyazo.com/f2845246b31710c5cd5f67daaa4292d0

SCM at 5.46 keys

Taking buyers price of 4.55 keys.

SALE 5

Unknown

https://backpack.tf/profiles/76561198087531087#!/compare/1562976000/1563148800

https://backpack.tf/profiles/76561198340634356#!/compare/1563062400/1563148800

MARKETPLACE SALES

49.99 on june 12 (49.99 / 1.81 = 27.61 rounding to 28 keys)

35 on june 15 (35 / 1.84 = 19.02 rounding to 19 keys)

27.15 on july 2 (27.15 / 1.82 = 14.91 rounding to 15 keys)

49.99 on july 9 (49.99 / 1.84 = 27.16 rounding to 27 keys)

34.95 on august 8 (34.95 / 1.82 = 19.2 rounding to 19 keys)

https://marketplace.tf/items/tf2/167;5;u3021

CLASSIFIEDS

https://gyazo.com/a64f4ae1adf5caf7ff33ad833833e0ee

Sales at 14, 19, 21, and 21. Marketplace sales at 15, 19, 19, 27, and 28.

Buyer at 14. Seller at 25 for 4 months, 27 and 28 is high due to that. 14 is low due to the buyer at 14.

That leaves sales at 15, 19, 19, 19, 21, and 21. 15 seems a bit low compared to the other sales, not as common either.

Taking 19-21 keys.