only usable sale i could find is this

http://backpack.tf/profiles/76561198008814875#!/compare/1454832000/1454918400

sold for 35 pure and a Cauldron Bubbles Scotch Bonnet

scotch bonnet is old pricing so i made a mini here

http://backpack.tf/suggestion/59179272c4404549676190e3

mini -

http://backpack.tf/profiles/76561198064831123#!/compare/1458777600/1458864000

sold for 30keys pure

sold for 8 pure scam? or super QS.. anyways not using

http://backpack.tf/profiles/76561198123474941#!/compare/1494374400/1494547200

sold for ~42 overpay but the tf logo is outpriced and the buyer is still selling it atm for 30 keys B/O meaning the price with a 30key b/o is ~35keys

http://backpack.tf/profiles/76561198119629032#!/compare/1494028800/1494115200

so sales we have that are useable are 30keys and 35~ keys

if you have more proof leave it below

pricing based of sales of Cauldron Bubbles Scotch Bonnet is 32.5 keys plus the 35 pure makes it 67.5 keys or for cleaness 68 keys

if you have more proof link below