4 in existence, 1 is on outpost

http://www.tf2outpost.com/trade/12086887

Sold for Overclocked Tin Gallon(~2 buds)

http://www.tf2outpost.com/trade/12486756 - B/O 2 buds

History changes too fast, can't find the sale. Replaced by Nuts Tossle, but history doesn't match up

http://www.tf2outpost.com/trade/12844721 - Apparently had a B/O of 1 bud + 13 keys(~1.6 buds)

-He offered on level 1 buds, was willing to take that

Looks like he sold for just 1 bud: http://backpack.tf/id/76561198056799458?time=1374476400

http://www.tf2outpost.com/trade/12933312

Sold for Ghosts Coupe(~1.3)

http://www.tf2outpost.com/trade/12936707

Sold for Clean Black Juju(~18 keys) + Black G. Doublecross(~5 keys) = ~23 keys

Valuing the Juju at 18 because he sold it for a Nuts Charmers and a key of sweets)

http://www.tf2outpost.com/trade/13109246

Unsure what it sold for, BP histories conflict suggesting different things, neither of which match up(Steaming Jefe or Nuts Tossle?)

http://www.tf2outpost.com/trade/13161298 - B/O 30 keys/1.4 buds

Sold for Smoking Pith + 16 keys = ~1.5 buds

Price Talk - Suggested Range: 23 - 32 keys

Looking at other sales and B/Os, the sale for ~2 seems like an outlier, as no other sales I could pin down came near it really. As for the range, I'm going by the sales I could concretely pin down, since there was so much missing history data in many sales.