Another random one.

Sale 1

Sold for 22 keys + 7 refs in sweets.

http://backpack.tf/profiles/76561198074924284#!/compare/1473724800/1473811200

No Outpost trade.

=======> ~22 keys

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

Sale 2

Sold for a Flaming Lantern Sack (17) + 2 keys

http://backpack.tf/profiles/76561198070143554#!/compare/1473033600/1473120000

http://backpack.tf/profiles/76561198074924284#!/compare/1473033600/1473120000

No Outpost trade.

=======> 17 + 2 = 19 keys

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

Sale 3

Bulk

http://backpack.tf/profiles/76561198021272428#!/compare/1472947200/1473033600

http://www.tf2outpost.com/trade/28397603 ----- No B/O

=======> Not using

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

Sale 4

Sold with ~4 keys in sweets for a Searing Pickel (24)

http://backpack.tf/profiles/76561198137445097#!/compare/1470268800/1470441600

No Outpost trade.

=======> 24 - 4 = 20 keys

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

Sellers

- http://www.tf2outpost.com/trade/28487902 ----- 22 keys for 2 weeks.

Summary

- Sales for 19, 20, 22.

Going with 19-22 keys. Criticism appreciated!