Sale 1:

Sold with 8 keys for Green Black Hole Gatsby (54.5)

Seller: https://backpack.tf/profiles/76561198260481425#!/compare/1555286400/1555632000

Buyer: https://backpack.tf/profiles/76561198284124072#!/compare/1555545600/1555632000

https://backpack.tf/item/6798946671

X = 47

Sale 2:

Sold for Purple Confetti Gibus (~30.5) + 10 keys

Seller: https://backpack.tf/profiles/76561198799335746#!/compare/1555113600/1555200000

Buyer: https://backpack.tf/profiles/76561198260481425#!/compare/1555113600/1555200000

https://backpack.tf/item/6798946671

X = 41

Sale 3:

Sold for 39 keys

Seller: https://backpack.tf/profiles/76561198140316312#!/compare/1554940800/1555027200

Buyer: https://backpack.tf/profiles/76561198829459668#!/compare/1554940800/1555027200

https://backpack.tf/item/7658623595

X = 39

Sale 4:

Sold for 39 keys

Seller: https://backpack.tf/profiles/76561198119634686#!/compare/1555027200/1555113600

Buyer: https://backpack.tf/profiles/76561198799335746#!/compare/1554595200/1555113600

https://backpack.tf/item/6798946671

X = 39

Sale 5:

Sold with a small amount of metal for 39 keys

Seller: https://backpack.tf/profiles/76561198123097664#!/compare/1554854400/1554940800

Buyer: https://backpack.tf/profiles/76561198119634686#!/compare/1554768000/1554854400

https://backpack.tf/item/6798946671

X = 39

Sale 6:

Sold for 38 keys

Seller: https://backpack.tf/profiles/76561198150729025#!/compare/1558656000/1558742400

Buyer: https://backpack.tf/profiles/76561198080714795#!/compare/1558656000/1560816000

https://backpack.tf/item/7757253762

X = 38

Sale 7:

Sold to a quickbuyer for 33 keys + 22 ref

Seller: https://backpack.tf/profiles/76561198167988237#!/compare/1560643200/1560729600

Buyer: https://backpack.tf/profiles/76561198337734785#!/compare/1560643200/1560729600

https://backpack.tf/item/7227439202

X = 33

Sale 8:

Sold for Bubbling Le Party Phantom (Suggestion at 22) + 10 keys

Seller: https://backpack.tf/profiles/76561198148446823#!/compare/1557964800/1558051200

Buyer: https://backpack.tf/profiles/76561198150729025#!/compare/1557964800/1558051200

https://backpack.tf/item/7757253762

X = 32

Marketplace Sales:

Sold for $81 on May 15th

https://marketplace.tf/items/30658;5;u62

https://backpack.tf/item/7533195680 - Can’t find B/O, nothing on bot.tf

https://manic.tf/keyprice/?at=2019-05-15 - $81 / $1.82 = 44.51 keys

X = 45

Other Sales:

https://backpack.tf/item/7011970202 (#1)

https://backpack.tf/item/6796874101 (#2)

https://backpack.tf/item/7757253762 (#4)

https://backpack.tf/item/6843153115 - mannco

https://backpack.tf/item/7010571121 - scrap

https://backpack.tf/item/7561724777 - marketplace/scrap/gambled

#1

Bulk for DBD War Pig

https://backpack.tf/profiles/76561198273075723#!/compare/1560297600/1560470400

https://backpack.tf/profiles/76561198080179568#!/compare/1560384000/1560470400

#2

Sold for Green Energy Toy Soldier

https://backpack.tf/profiles/76561198342161127#!/compare/1556582400/1556668800

https://backpack.tf/profiles/76561198245296770#!/compare/1556582400/1556668800

Probably better off being used on the Toy Soldier.

#3

Bulk/Untraceable

https://backpack.tf/profiles/76561198067819113#!/compare/1559174400/1560297600

https://backpack.tf/profiles/76561198061440669#!/compare/1560211200/1560297600

#4

Sold for Circling Peace Sign Cotton Head + Holy Grail Buy a Life

https://backpack.tf/profiles/76561198337583821#!/compare/1557360000/1557619200

https://backpack.tf/profiles/76561198148446823#!/compare/1557532800/1557619200

Very few sales on the Cotton Head, may be better to use there if possible.

Bubbling Phantom:

https://backpack.tf/suggestion/5d08f1216780727df57914f8

Sellers:

https://i.imgur.com/IjkzT5B.png

https://backpack.tf/item/7227439202 - 37 keys

https://backpack.tf/item/6361981253 - 37 keys

https://backpack.tf/item/7757253762 - 42 keys

https://backpack.tf/item/7011970202 - 44 keys

https://backpack.tf/item/7561724777 - 45 keys

Sales at:

32

33

38

39 (3x)

41

45

47

Disregarding the fact that some sales sold to quickbuyers, as quickbuyers have dropped to ~27 keys now.

Sellers at 37, but large volume of pure sales for a little higher. Keeping the pure sales above the sellers in the range, but not non-pure sales. Excluding 41+.

Going with 32-39.