Sale 1:

Sold for 9 keys

Seller: https://backpack.tf/profiles/76561198215837053#!/compare/1588636800/1588723200

Buyer: https://backpack.tf/profiles/76561198085142983#!/compare/1588636800/1588723200

https://backpack.tf/item/7956379822

9 keys

Sale 2:

Sold for Steaming Sky High Fly Guy (7)

Seller: https://backpack.tf/profiles/76561198372394405#!/compare/1585872000/1585958400

Buyer: https://backpack.tf/profiles/76561198126993284#!/compare/1585785600/1585872000

https://backpack.tf/item/7957222231

7 keys

Sale 3:

Sold for 6 keys

Seller: https://backpack.tf/profiles/76561198048851745#!/compare/1585785600/1585872000

Buyer: https://backpack.tf/profiles/76561198372394405#!/compare/1585785600/1585872000

https://backpack.tf/item/7957222231

6 keys

Sale 4:

Sold for 6 keys + 7 ref

Seller: https://backpack.tf/profiles/76561198884026993#!/compare/1586044800/1586131200

Buyer: https://backpack.tf/profiles/76561198162241083#!/compare/1585958400/1586131200

https://backpack.tf/item/7957222231

6 keys

Sale 5:

Sold for 6 keys

Seller: https://backpack.tf/profiles/76561198085142983#!/compare/1588636800/1588723200

Buyer: https://backpack.tf/profiles/76561198273711006#!/compare/1588636800/1588809600

https://backpack.tf/item/7956379822

6 keys

Sale 6:

Sold for 6 keys

Seller: https://backpack.tf/profiles/76561198435612701#!/compare/1582156800/1582243200

Buyer: https://backpack.tf/profiles/76561198839939683#!/compare/1582156800/1582243200

https://backpack.tf/item/7956302370

6 keys

Other Sales:

https://backpack.tf/item/7957222231 (#1-3)

https://backpack.tf/item/7956302370 (#4 & #5)

https://backpack.tf/item/4777636808 (#6)

#1

Untraceable

https://backpack.tf/profiles/76561198146053353#!/compare/1581638400/1581724800

https://backpack.tf/profiles/76561198048851745#!/compare/1581638400/1581724800

#2

Sold with a key in items for Terror-Watt Bonk Leadwear

https://backpack.tf/profiles/76561198126993284#!/compare/1585958400/1586044800

https://backpack.tf/profiles/76561198175422829#!/compare/1585785600/1585958400

Planning on using on the Leadwear, though it’s looking like it’ll end up being an outlier.

#3

Sold for Smoking Rimmed Raincatcher

https://backpack.tf/profiles/76561198175422829#!/compare/1586044800/1586131200

https://backpack.tf/profiles/76561198884026993#!/compare/1586044800/1586131200

Can be used on the Raincatcher

#4

Untraceable

https://backpack.tf/profiles/76561198095886028#!/compare/1588550400/1588723200

https://backpack.tf/profiles/76561198215837053#!/compare/1588204800/1588636800

#5

Sold for Orbiting Planets Nanobalaclava

https://backpack.tf/profiles/76561198839939683#!/compare/1582243200/1582329600

https://backpack.tf/profiles/76561198189307597#!/compare/1582329600/1582416000

Can be used on the Nano.

#6

Untraceable

https://backpack.tf/profiles/76561198337734785#!/compare/1582243200/1582329600

https://backpack.tf/profiles/76561198354459626#!/compare/1582243200/1582329600

#7

Untraceable

https://backpack.tf/profiles/76561198396576035#!/compare/1588723200/1588809600

https://backpack.tf/profiles/76561198203657571#!/compare/1588464000/1588723200

Sellers:

https://i.imgur.com/E3jbN8t.png

https://backpack.tf/item/1795180339 - 9 keys

https://backpack.tf/item/1802577291 - 9 keys

Sales at:

6 (4x)

7

9

Sellers at 9 are pretty old, one of them listed for 7 months despite even being spelled. That, and I’m not confident the 9 key sale is even correct. Excluding 9.

Taking 6-7.