Recent sale -

http://www.tf2outpost.com/trade/18993646 - duped burning Attendant(9) + circ heart Hustler's Hallmark(6.7) + circ heart Infernal Impaler(10) = 25.7*0.9 - 23~

attendant -

http://www.tf2outpost.com/trade/19997477 - Burning Flames Geisha(4.3) + Steaming Noble(1.5) + 4 pure = ~9.2, with slightly outdated hats, but b/o was at 9 - so looks like a fair price.

http://www.tf2outpost.com/trade/20268478 - idk broker and all, but seems it sold for an AF Modest Metal Pile of Scrap(~9)

AF modest -

http://www.tf2outpost.com/trade/19223677 - haunted Batter's Helmet(3.1) + lantern Tyrannus(5.9) = ~9

Over 3 months now, no other sales (wasn't 3months at time posted this suggestion)