Marketplace Sales:

https://marketplace.tf/items/30422;5;u7

https://manic.tf/keyprice/?at=2018-12-17 - $50 / $1.65 = 30.30 keys

https://manic.tf/keyprice/?at=2019-02-02 - $60 / $1.81 = 33.15 keys

https://i.imgur.com/WN4yTFw.png - B/O of 32 on the ~33 key sale

X = 32 (Capped by B/O)

X = 30

Other Sales:

https://backpack.tf/item/6748726824 (#1)

#1

Untraceable, auction sale

https://backpack.tf/profiles/76561198190300358#!/compare/1550361600/1551139200

https://backpack.tf/profiles/76561198880129920#!/compare/1550966400/1551139200

Sellers:

https://i.imgur.com/c0ygSxU.png

https://backpack.tf/item/6748726824 - 27 keys

https://backpack.tf/item/7544124712 - 27 keys

32 key seller already sold

Sales at:

30

32

Was gonna exclude 32 due to the sellers, but they are fairly young assuming they haven’t re-listed.

Using the sellers as the low-end.

Going with 27-32.