Thanks Surs bb for the request :^)

Sale 1:

Sold for a Orbiting Planets Virus Doctor and an Australium Blutsauger

(18.5*0.9) + (10 - 1) = 25.65 rounding to 26 keys

http://backpack.tf/profiles/76561198060460564?time=1429686000 (April 22nd)

http://backpack.tf/profiles/76561198060460564?time=1429772400 (April 23rd)

Sale 2:

Sold for a Smoking Das Hazmattenhatten

(18*0.9) = 16.2 rounding to 16 keys

http://backpack.tf/profiles/76561198043897422?time=1430550000 (May 2nd)

http://backpack.tf/profiles/76561198043897422?time=1430722800 (May 4th)

Notes:

Mini for the Smoking Das Hazmattenhatten: ~18

http://backpack.tf/vote/id/5565347fba8d88d0028b4577

Conclusion:

Sales at 16 and 26, taking the final range at 16 to 26.