Sale 1:

Sold for a Vivid Plasma Samur-Eye and a Genuine Grandmaster

(65 + 5)*0.9 = 63 keys

http://www.tf2outpost.com/trade/25599683

http://backpack.tf/profiles/76561198000269846?time=1428476400 (April 8th)

http://backpack.tf/profiles/76561198000269846?time=1428562800 (April 9th)

Sale 2:

Sold for 57 keys pure

57 keys

http://www.tf2outpost.com/trade/25743994

http://backpack.tf/profiles/76561198041760614?time=1429513200 (April 20th)

http://backpack.tf/profiles/76561198041760614?time=1429858800 (April 24th)

Notes:

Mini for the Vivid Plasma Samur-Eye

Sold with a Searing Plasma Berliner's Bucket Helm for a Green Energy Samur-Eye and a Kill-a-Watt Bolted Birdcage

(83.5 + 13.25)*0.9 - 22.5 = 64.575 rounding to 65 keys

http://www.tf2outpost.com/trade/25656249

http://backpack.tf/profiles/76561198000269846?time=1428649200 (April 10th)

http://backpack.tf/profiles/76561198000269846?time=1428735600 (April 11th)

Conclusion:

Sales at 63 and 57,taking the final range at 57 to 63 keys.