Offers:

http://backpack.tf/classifieds/search/150/3/0 - 1 at 3.7 keys (painted gold), 1 at 3.77 keys, 8 at 4 keys (painted black, gold, lime)

Sellers at 3 keys:

http://www.tf2outpost.com/trade/12939201 - sold 1 (another painted gold)

Sellers at 3.5 keys:

http://www.tf2outpost.com/trade/13014844 - unsold (2 hours)

Sellers at 3.8 keys:

http://tf2tp.com/trade.php?trade=9649995 - unsold (4 hours)

http://www.tf2outpost.com/trade/12998225 - unsold (15 hours)

http://bazaar.tf/trade/320858 - unsold (15 hours)

Sellers at 4 keys:

http://www.tf2outpost.com/trade/13015267 - unsold (1 hour) (painted black)

http://www.tf2outpost.com/trade/13013091 - unsold (3 hours)

http://www.tf2outpost.com/trade/13012045 - unsold (5 hours) (painted drab)

http://www.tf2outpost.com/trade/13006398 - unsold (10 hours) (painted gold)

http://www.tf2outpost.com/trade/12999641 - unsold (14 hours) (painted drab)

http://www.tf2outpost.com/trade/12977753 - unsold (1 day) (painted color 216)

http://www.tf2outpost.com/trade/12966056 - unsold (1 day)

http://bazaar.tf/trade/319973 - unsold (1 day) (painted pink)

http://www.tf2outpost.com/trade/12979620 - unsold (1 day) (painted pink)

http://www.tf2outpost.com/trade/12964091 - unsold (1 day) (painted lime)

http://www.tf2outpost.com/trade/12962607 - unsold (1 day) (painted lime)

http://www.tf2outpost.com/trade/12955230 - unsold (1 day) (painted lime)

http://www.tf2outpost.com/trade/12929279 - unsold (2 days)

http://www.tf2outpost.com/trade/12664006 - unsold (1 week) (painted lime)

http://www.tf2outpost.com/trade/12649381 - unsold (1 week) (painted lime)

http://www.tf2outpost.com/trade/12340311 - unsold (2 weeks)

http://www.tf2outpost.com/trade/11256432 - unsold (1 month) (painted waterlogged)

http://www.tf2outpost.com/trade/12977753 - sold (painted color 216)

http://www.tf2outpost.com/trade/12952379 - sold (painted mint)