Only 4 of these exists; 3 had been on the market but one of these are in the hands of a collector.

Currently one is on the market:

http://www.tf2outpost.com/trade/11059771 - No offers yet (a brand new trade)

Recent Sales:

http://www.tf2outpost.com/trade/10695014 - sold for a clean lvl 7 Max head painted white (approx 2 buds) - 3 days ago

Notable Offer: circling peace crocleather plus one bud

Rejected offer: N&B salty dog + planets mullet (not going to include the #70 straw hat bit)

http://www.tf2outpost.com/trade/10647099 - Sold for a Bud + a N&B mirror + 4 keys (approx 1.7273 buds; buds were 22 keys then) - 1 week ago

Rejected offers: 1 bud + 9 keys and 1 bud + 10 keys