Only recent clean sale.

Sale 1: Sold with Strange Killstreak Turbine Torcher Flame Thrower (Minimal Wear)[0.5 keys(also had a part adding another key]+Taunt: Zoomin' Broom[2.2 keys]+3 pyro hats[each with lime paint, adding a key for each] for Blizzardy Storm Front Runner[23 keys]

http://backpack.tf/profiles/76561198113406714#!/compare/1461369600/1461456000

http://backpack.tf/profiles/76561198001928393#!/compare/1461369600/1461456000

0.5+1=1.5

1.5+2.2+3=6.7 keys

23-6.7=16.3 rounding to 16 keys

I have a sale at 16, making this 16 keys flat.