Selling

http://www.tf2outpost.com/trade/10555023 (1 Key, 2 ref)

http://www.tf2outpost.com/trade/10592244 (1 Key, 1 ref)

http://www.tf2outpost.com/trade/10555816 (1 key, 1 ref)

Unsold

http://www.tf2outpost.com/trade/10091639 (3 weeks, rejected 7 ref)

http://www.tf2outpost.com/trade/10509597 (3 days, 1.5 keys)

http://www.tf2outpost.com/trade/10563646 (1 day, 1.5 keys)

http://www.tf2outpost.com/trade/10520209 (2 days, 1.5 keys)

Successful Buyers:

http://www.tf2outpost.com/trade/10240515 (6 ref offer for Gold Boots)

Not a lot of trades to find.

Several buyers at 1 key. Sellers at 1 Key 1 ref (1.2 keys), some offers up to 7 ref (1.4 keys). I considered making 'nice numbers' and leaving the high end at 1.5, but that wouldn't be consistent with what I've found.