#Squad-1, ~Zeckatz.

Sale 1: Bulk.

https://backpack.tf/profiles/76561197990090615#!/compare/1553731200/1553817600

https://backpack.tf/profiles/76561198864500962#!/compare/1553558400/1554422400

Sale 2: Untrace.

https://backpack.tf/profiles/76561198330635661#!/compare/1554249600/1554336000

https://backpack.tf/profiles/76561198090147535#!/compare/1554249600/1554336000

Sale 3: ~34 Keys. https://bot.tf/stats/listings/42ELZ8ZY

Sold For Strange Professional Killstreak Australium Black Box (17) + Strange Specialized Killstreak Australium Stickybomb Launcher (14) + Strange Conniver's Kunai (1) + 2 Keys. (17+14+2+1=34)

https://backpack.tf/profiles/76561198090147535#!/compare/1554336000/1554422400

https://backpack.tf/profiles/76561198043814643#!/compare/1554336000/1554422400

Sale 4: ~35 Keys.

Sold For Strange Specialized Killstreak Construction PDA.

(B/O Cap 35, https://bot.tf/stats/listings/469KLJR4)

https://backpack.tf/profiles/76561198043814643#!/compare/1554508800/1554595200

https://backpack.tf/profiles/76561198220612564#!/compare/1554508800/1554595200

Sale 5: QS?

https://backpack.tf/profiles/76561198220612564#!/compare/1554595200/1554681600

https://backpack.tf/profiles/76561198337734785#!/compare/1554508800/1554595200

Sale 6: Untrace.

https://backpack.tf/profiles/76561198337734785#!/compare/1554768000/1554854400

https://backpack.tf/profiles/76561198112663388#!/compare/1554681600/1554854400

Sale 7:

Sold With 1 Key For C9 Salty.

https://backpack.tf/profiles/76561198125501738#!/compare/1552867200/1552953600

https://backpack.tf/profiles/76561198358637545#!/compare/1552780800/1553212800

Sale 8: ~40 Keys Pure.

https://backpack.tf/profiles/76561197984366267#!/compare/1556150400/1556323200

https://backpack.tf/profiles/76561198042426740#!/compare/1556236800/1556323200

Sale 9: Bulk.

https://backpack.tf/profiles/76561198318710680#!/compare/1554076800/1554336000

https://backpack.tf/profiles/76561198348057478#!/compare/1553385600/1554336000

Marketplace.tf Sales:

https://marketplace.tf/items/30623;5;u18

Sale 10: ~38 Keys.

Apr 21

$68.89 / $1.78 = 38.70 keys

Sale 11: ~38 Keys.

May 3

$68.88 / $1.8 = 38.27 keys

Including Sales: 34/35/38/38/40

Going With 34-38 Keys. Isn't selling at 38 after a month, 40 isn't accurate.