Sale 1:

https://backpack.tf/profiles/76561198055622215#!/compare/1589068800/1589155200 - Sold for Haunted Ghosts Ye Oiled Baker Boy (Use there)

https://backpack.tf/profiles/76561198354220640#!/compare/1588723200/1589155200

Sale 2:

https://backpack.tf/profiles/76561198354220640#!/compare/1589760000/1589846400 - ?

https://backpack.tf/profiles/76561198363395191#!/compare/1589760000/1589846400

Sale 3:

https://marketplace.tf/items/tf2/614;5;u8

Apr 9 - $34.95 / $1.69 = 20.68 keys = 21 keys, couldn't find b/o

Apr 13 - $34.95 / $1.72 = 20.32 keys = 20 keys, couldn't find b/o

Apr 25 - $34.95 / $1.79 = 19.53 keys = 20 keys, couldn't find b/o

Jun 6 - $42.22 / $1.99 = 21.22 keys = 21 keys, https://backpack.tf/item/7178664660 - https://backpack.tf/item/7178664660

Jun 26 - $39.59 / $2.03 = 19.50 keys = 20 keys.

Sales:

20

20

20

21

21

~20-21