A few sales, but none that I could make any sense of at all - lots look like paypal trades or quicksells, lots of histories have it in and out of multiple backpacks in one day, making tracking sales impossible. The couple I could figure are too complex to use.

Current BOs:

http://www.tf2outpost.com/trade/24428781 10 keys, 4 months

http://www.tf2outpost.com/trade/25609921 10 keys, 1 month

This should be ok, but any feedback is very welcome and if anyone else managed to figure out any of the sales then they're welcome to add info or counter.

These are the histories with sales:

http://backpack.tf/item/1001977879

http://backpack.tf/item/1551125388

http://backpack.tf/item/2404800376

http://backpack.tf/item/3475629737

http://backpack.tf/item/1126915570