3 recent sales, 2 years outdated

Sale 1

http://backpack.tf/profiles/76561198012613726#!/compare/1485907200/1485993600

Sold for N&B Batter's Helmet + P.fetti Prancer's Pride + 7 pure

X = 7 + 9 + 12 = 28 keys

Batter's mini:

http://backpack.tf/profiles/76561198228670864#!/compare/1486944000/1487030400

http://backpack.tf/profiles/76561198197562962#!/compare/1486944000/1487030400

Sold for 9 pure

X = 9 keys

Pride mini:

http://screenshot.sh/odZXDKfb5N5J3

13 days unsold @ 11.5 key

X = 11.5 rounding to 12

Sale 2

http://backpack.tf/profiles/76561198113246555#!/compare/1486944000/1487030400

Sold with Prof Ks Australium Axtinguisher (7 keys according to classies) for Burning Stately Steel Toe

B/o was 33 keys:

http://www.tf2outpost.com/trade/28738109

SO

X = 33 - 7 = 26 keys

Sale 3

http://backpack.tf/profiles/76561198012613726#!/compare/1483488000/1483660800

http://backpack.tf/profiles/76561198114248159#!/compare/1483574400/1483747200

http://backpack.tf/item/1686337305

http://backpack.tf/item/557970439

Sold with 8 keys for Overclocked Soldered Sensei (can't find any b/o or sales, taking 34 keys)

SO

X = 34 - 8 = 26 keys

We have sales at:

26, 26, 28, so I can easy call it 26-28