I thought there was a Vintage Cone once

Sale 1

http://www.tf2outpost.com/trade/24661445 Sold with BMOC for C9 Crocleather Slouch

B/O for Cone was 4

B/O for Slouch was 4

X + 0.55 = 3.6*0.9

X = 2.7

Slouch http://backpack.tf/item/2263563154

BMOC http://backpack.tf/item/638174001

Dead Cone http://backpack.tf/item/2060154017

Mini for Slouch

http://www.tf2outpost.com/trade/23980911 Sold for KaW Buccaneer's Bicorne + Logo Larrikin

B/O for Slouch was 4.1

B/O for Bicorne was 3

X = 3*0.9 + 1*0.9

X = 2.7 + 0.9

X = 3.6

Larrikin http://backpack.tf/item/934112360

Slouch http://backpack.tf/item/2263563154

Buccaneer's http://backpack.tf/item/1760080930

Sale 2

http://www.tf2outpost.com/trade/24023893 Sold for Phos Fruit Shoot

B/O for Shoot was 3

X = 3*0.9

X = 2.7

Fruit http://backpack.tf/item/1960893368

Cone http://backpack.tf/item/2060154017

Mini for Fruit

Cannot find a suitable sale, using the B/O of 3 from the trade above