Sale 1:

http://backpack.tf/profiles/76561198299998592#!/compare/1489363200/1489449600

Sold with a duped Blizzardy Storm Professional's Panama (14) for a Green Energy Noble Nickel Amassment of Hats (48)

= 34

Mini for pana:

2 duped sellers @ 14

http://imgur.com/a/GemlU

http://backpack.tf/item/1734171967

http://backpack.tf/item/1734171967

Sale 2:

http://backpack.tf/profiles/76561198299998592#!/compare/1488672000/1488758400

Sold for a Circling TF Logo A Rather Festive Tree (23) + Strange Specialized Killstreak Australium Black Box (14) + 7 keys

= 44

Mini:

http://backpack.tf/profiles/76561198325294399#!/compare/1489363200/1489449600

Sold for 23 keys

Sale 3:

http://backpack.tf/profiles/76561198084435331#!/compare/1489017600/1489276800

Sold for a Strange Specialized Killstreak Australium Scattergun (27) + Strange Specialized Killstreak Australium Stickybomb Launcher (13)

= 40

http://www.tf2outpost.com/trade/28825053 - B/O 37

Sale 4:

http://backpack.tf/profiles/76561198084435331#!/compare/1487289600/1487376000

http://backpack.tf/profiles/76561198009950989#!/compare/1487289600/1487462400

Sold for 22 keys???

QS

Sale 5:

http://backpack.tf/profiles/76561198021055079#!/compare/1487116800/1487203200

Sold for a Scorching Flames Pugilist's Protector (30)

Mini:

http://backpack.tf/profiles/76561198115062041#!/compare/1488931200/1489017600

Sold for 28 keys + Bread Box (2)

= 30

Sale 6:

http://backpack.tf/profiles/76561198087462179#!/compare/1488412800/1488844800

???

Nothing matches

Sales:

34

44 - outlier

37

30

Going with 30 - 37