Classifieds :

http://backpack.tf/classifieds/?item=B.A.S.E.+Jumper&quality=6&tradable=1&craftable=1

1 at 0,22 | 9 at 0,33!

Sellers bellow 0,33 :

http://www.tf2outpost.com/trade/22068771 - 0,11

http://www.tf2outpost.com/trade/22069495 - 0,11

http://www.tf2outpost.com/trade/22074316 - 0,22

http://www.tf2outpost.com/trade/22058572 - 0,22

Sellers at 0,33 :

http://www.tf2outpost.com/trade/22074496

http://www.tf2outpost.com/trade/22071892 - Have 2

http://www.tf2outpost.com/trade/22068849

http://www.tf2outpost.com/trade/22071071

http://www.tf2outpost.com/trade/22053595

http://www.tf2outpost.com/trade/22070252

http://www.tf2outpost.com/trade/22016143 - Sold 4, Have 1

http://www.tf2outpost.com/trade/21941037

http://www.tf2outpost.com/trade/22034008

http://www.tf2outpost.com/trade/22054809

Sales :

http://www.tf2outpost.com/trade/21923091 - 0,11

http://www.tf2outpost.com/trade/22067651 - 0,11 (Sold 2)

http://www.tf2outpost.com/trade/22061379 - 0,11

http://www.trade.tf/trade/483039640 - 0,22

http://www.trade.tf/trade/483098131 - 0,22

http://www.tf2outpost.com/trade/22064780 - 0,22

http://www.tf2outpost.com/trade/22054583 - 0,22

http://www.trade.tf/trade/483034709 - 0,33

http://www.trade.tf/trade/483021280 - 0,33

http://www.trade.tf/trade/483100553 - 0,33

http://www.trade.tf/trade/483090953 - 0,33

http://www.trade.tf/trade/483094881 - 0,33

http://www.trade.tf/trade/483082916 - 0,33

http://www.tf2outpost.com/trade/22067266 - 0,33

http://www.tf2outpost.com/trade/22066212 - 0,33

http://www.tf2outpost.com/trade/22064918 - 0,33 (Sold 2)

http://www.tf2outpost.com/trade/22068304 - 0,33

http://www.tf2outpost.com/trade/22067811 - 0,33

http://www.tf2outpost.com/trade/22063438 - 0,33

http://www.tf2outpost.com/trade/22062844 - 0,33

http://www.tf2outpost.com/trade/22058538 - 0,33

http://www.tf2outpost.com/trade/22057897 - 0,33

Unsolds at 0,44 :

http://www.tf2outpost.com/trade/22009681 - 2 days

http://www.tf2outpost.com/trade/21798479 - 1 week

Unsold at 0,55 :

http://www.tf2outpost.com/trade/21999001 - 3 days

Unsolds at 0,66 :

http://www.tf2outpost.com/trade/22038214 - 1 day

http://www.tf2outpost.com/trade/22029272 - ~2 days

http://www.tf2outpost.com/trade/22014876 - 2 days (bp.tf prices)

http://www.tf2outpost.com/trade/22021507 - 2 days

http://www.tf2outpost.com/trade/21984593 - 3 days (bp.tf prices)

http://www.tf2outpost.com/trade/21964608 - 4 days

http://www.tf2outpost.com/trade/21855586 - 1 week

http://www.tf2outpost.com/trade/21865366 - 1 week

Conclusion :

Found few sales above 0,33 and few below but 0,33 seems most common traded point.