The only 2 sales i could find:

http://www.tf2outpost.com/user/89665

--appears to have sold for hearts noir (1.7) [1.5 pure]

http://www.tf2outpost.com/trade/7971284

--Sold for Smoking Flamenco (2.1) [1.9 pure]

All the sellers are unsuccessfully trying to get 2, and none of them are even close to getting it. Theres also no proof to support 2 buds as the high end.

This one [url]http://www.tf2outpost.com/trade/8534828[/url], was bought recently for smoking ze googlez and bubling tricorne ~1.5