Sale 1

http://backpack.tf/profiles/76561198102244842#!/compare/1485734400/1485820800

https://gyazo.com/ce5515934ba176758a0f32e305fd7ee5

Sold for TF Logo German Gonzila (14.5 rounding to 15)

X = 15

Sale 2

http://backpack.tf/profiles/76561198082677089#!/compare/1486166400/1486252800

https://gyazo.com/2b5d0010f1f5477acb135a7a0847b119

Sold for Spectral Swirl Results Are In + 1 key and 8 ref + Violet paint (7 ref)

X = 20 + 1 key 15 ref = ~22 keys capped on b/o of 20 keys

http://www.tf2outpost.com/trade/28756979

Results mini:

https://gyazo.com/ec2443dd64b3f0e76d5bbd9fd3506f50

15 day unsold @ 20

X = 20 keys

Sale 3

Something's broken here with compare but histories says it's been sold for DP Le Party Phantom:

http://backpack.tf/profiles/76561198102244842#!/compare/1483228800/1483401600

http://backpack.tf/profiles/76561198012613726#!/compare/1483315200/1483401600

http://backpack.tf/item/2203887642

http://backpack.tf/item/1997508769

X = 24 keys

Party Phantom mini:

http://backpack.tf/profiles/76561198095920116#!/compare/1486339200/1486598400

Sold for Bill's Hat (1.65 key) + GE Shooter's Sola Topi (22 keys)

X = 23.65 key rounding to 24

GE Shooter's Sola Topi micro:

http://backpack.tf/profiles/76561198099156670#!/compare/1486512000/1486598400

Sold for Morning Glory Pyro's Boron Beanie (22 keys, in date)

X = 22 keys

Seller @ 21 on classies

http://screenshot.sh/m3y6JVRYiwB9l

So, we have sales at:

15, 20 and 24 + seller at 21

15 seems like an outlier taking classies buyers:

http://screenshot.sh/m7z4mZznhO09N

Taking 20-24