2 Month old price. Just like every other unwanted vintage.

Sorry if there isn't many in the range, but over the weeks I've seen them but didn't think about a proof until now.

Proof:

Selling for 5 Ref or less:

http://backpack.tf/classifieds/search/id/5200674c4bd7b8bc74000004 (4.44 ref & 5 ref)

http://www.tf2outpost.com/trade/14276784 (3-3.66 ref [Unsold for 2 weeks!])

http://www.tf2outpost.com/trade/14684439

Selling for 5.33 Ref:

http://backpack.tf/classifieds/search/id/5200674c4bd7b8bc74000004 (5.33 ref)

Selling for 5.66 Ref:

http://bazaar.tf/trade/440294 (6 Days)

Unsolds at 1 Key or 6 Ref:

http://bazaar.tf/trade/267747 (3 Months [Still in BP])

http://www.tf2outpost.com/trade/12707297 (2 Months [Lvl 99])

http://www.tf2outpost.com/trade/13664548 (1 Month)

http://www.tf2outpost.com/trade/13809900 (1 Month)

http://bazaar.tf/trade/344294 (1 Month)

http://bazaar.tf/trade/372078 (1 Month)

http://www.tf2outpost.com/trade/14169076 (3 Weeks)

http://www.tf2outpost.com/trade/14249607 (3 Weeks)

http://www.tf2outpost.com/trade/14265066 (3 Weeks)

http://www.tf2outpost.com/trade/14428522 (2 Weeks)

http://bazaar.tf/trade/423356 (2 Weeks)

http://www.tf2outpost.com/trade/14448011 (1 Week)

http://www.tf2outpost.com/trade/14498368 (1 Week)

http://www.tf2outpost.com/trade/14516594 (1 Week)

http://www.tf2outpost.com/trade/14552136 (1 Week)

http://www.tf2outpost.com/trade/14569577 (1 Week)

http://www.tf2outpost.com/trade/14569825 (1 Week)

http://bazaar.tf/trade/425717 (1 Week)

http://www.tf2outpost.com/trade/14580565 (6 Days)

http://bazaar.tf/trade/440296 (6 Days)

http://www.tf2outpost.com/trade/14595279 (5 Days)

http://www.tf2outpost.com/trade/14609655 (5 Days)

http://www.tf2outpost.com/trade/14641816 (3 Days)

http://www.tf2outpost.com/trade/14644342 (3 Days)

http://bazaar.tf/trade/445194 (3 Days)