4 on the market.

http://www.tf2outpost.com/trade/15785669

Offered 4 pure (note: offer is very outdated and DedSouprise only has 1 pure bud now, not really valid anymore)

http://www.tf2outpost.com/trade/16175178

No notable offers.

http://www.tf2outpost.com/trade/16016413

Sold for a Max's Head (~2.2) - note that it was sold for both unusuals shown in history.

http://backpack.tf/id/76561198065377493?time=1386057600

http://backpack.tf/id/76561198065377493?time=1386230400

http://www.tf2outpost.com/trade/15938552

Sold for a Mem. Leak Brigade Helm (N/A)

http://www.tf2outpost.com/trade/16180892

Offered a duped Smoking Modest (~2.6)

http://www.tf2outpost.com/trade/15978322

Sold for a P. Energy Whoopee Cap (~3.6)

http://backpack.tf/id/76561198051728775?time=1385452800

http://backpack.tf/id/76561198051728775?time=1385539200

Outlier

http://www.tf2outpost.com/trade/16093821

Sold for a TF Logo Tyrant's (~2.6 buds)

http://backpack.tf/id/76561197974764104?time=1385625600

http://backpack.tf/id/76561197974764104?time=1386057600