3 month old price.

Solds/Offers/Buyers at .33 ref and above:

http://www.tf2outpost.com/trade/15092591 .33 ref sold

http://www.tf2outpost.com/trade/14924578 Two .33 ref offers

http://www.tf2outpost.com/trade/15085947 .33 ref buyer

http://www.tf2outpost.com/trade/15092322 .33 ref buyer

http://www.tf2outpost.com/trade/14444059 .33 ref buyer

http://www.tf2outpost.com/trade/15091722 .44 ref sold

http://www.tf2outpost.com/trade/14947349 interested buyer at a ref

Quickly Sold at .22 ref:

http://www.tf2outpost.com/trade/15103538 instantly sold

Unsuccessful Buyers at .22 ref:

http://www.tf2outpost.com/trade/15110610 7 hours (young)

.22 ref is a quicksell.

.33 ref is the most common price that is being sold/offered/bought at.

.44 ref doesn't seem to have enough links to back it up.