Sale 1:

42 keys

with 2 keys for Abyssal Sterling(44)

https://backpack.tf/profiles/76561198107793922#!/compare/1574553600/1574640000

https://backpack.tf/profiles/76561198022610417#!/compare/1574467200/1574553600

Sterling: https://backpack.tf/suggestion/5e1b4d370862a40d53706002

Sale 2:

stormy vive(37.5)

https://backpack.tf/profiles/76561198022610417#!/compare/1574553600/1574640000

https://backpack.tf/profiles/76561198170143095#!/compare/1574467200/1574640000

vive: https://backpack.tf/suggestion/5e1b441399c3bb17c54b8e44

Sale 3:

29 keys

sold with 5 keys for GE Mann of Reason(34)

https://backpack.tf/profiles/76561198170143095#!/compare/1575936000/1576022400

https://backpack.tf/profiles/76561198062926833#!/compare/1575936000/1576022400

Mann of Reason: https://backpack.tf/suggestion/5e18876121c58444c22deeb5

Sale 4:

using on eyewear

sold with pro KS shotgun kit for beams eyewear

https://backpack.tf/profiles/76561198062926833#!/compare/1576627200/1576713600

https://backpack.tf/profiles/76561198121628900#!/compare/1562630400/1576713600

Sale 5:

using on coldsnap

https://backpack.tf/profiles/76561198121628900#!/compare/1576800000/1576886400

https://backpack.tf/profiles/76561198153088409#!/compare/1576627200/1576800000

==============================================================================

Sales:

29,38,42

excluding 29 as low outlier, if sale 4 was used here it would also be around 40 keys