Sale 1:

https://backpack.tf/profiles/76561198044203779#!/compare/1539388800/1539475200

Sold for ~7 keys + 12 ref

Sale 2:

https://backpack.tf/profiles/76561197984373540#!/compare/1541203200/1541462400

Untrace

Sale 3:

https://backpack.tf/profiles/76561198048851745#!/compare/1539734400/1539907200

https://backpack.tf/profiles/76561198386366757#!/compare/1539820800/1539993600

Sold for 7 keys + 5.33 ref

Sale 4:

https://backpack.tf/profiles/76561198386366757#!/compare/1540252800/1540944000

https://backpack.tf/profiles/76561198136156560#!/compare/1540598400/1540684800

Something like ~6 keys in items...

Sale 5:

https://backpack.tf/profiles/76561198136156560#!/compare/1540771200/1541894400

https://backpack.tf/profiles/76561198189381361#!/compare/1540425600/1540771200

Untrace

Sale 6:

https://backpack.tf/profiles/76561198073463956#!/compare/1540684800/1540771200

Untrace

Sale 7:

https://backpack.tf/profiles/76561198070705963#!/compare/1540771200/1540857600

Sold for 7 keys + 1 ref (ID Match)

Sale 8:

https://backpack.tf/profiles/76561198002757046#!/compare/1541376000/1541462400

https://backpack.tf/profiles/76561198241031938#!/compare/1541376000/1541462400

Sold for 7 keys

Sale 9:

https://backpack.tf/profiles/76561198241031938#!/compare/1541462400/1541548800

https://backpack.tf/profiles/76561198143030852#!/compare/1541203200/1541462400

Untrace

Sale 10:

https://backpack.tf/profiles/76561198143030852#!/compare/1542758400/1543363200

https://backpack.tf/profiles/76561198229149424#!/compare/1543190400/1543276800

Sold for FBoA Square Dance + craft hat

Use there.

Sale 11:

https://backpack.tf/profiles/76561198353029645#!/compare/1541548800/1541635200

Untrace

Sale 12:

https://backpack.tf/profiles/76561198129348888#!/compare/1542412800/1544313600

https://backpack.tf/profiles/76561198836483281#!/compare/1543622400/1544313600

Untrace

Sale 13:

https://backpack.tf/profiles/76561198836483281#!/compare/1544313600/1545091200

https://backpack.tf/profiles/76561198399655137#!/compare/1544140800/1544313600

Untrace

Sale 14:

https://backpack.tf/profiles/76561198092382473#!/compare/1544745600/1545609600

https://backpack.tf/profiles/76561198101300189#!/compare/1542585600/1544745600

Untrace

Sale 15:

https://backpack.tf/profiles/76561198101300189#!/compare/1544745600/1544832000

https://backpack.tf/profiles/76561198296439158#!/compare/1544659200/1544832000

Bulk

Sale 16:

https://backpack.tf/profiles/76561198296439158#!/compare/1545868800/1545955200

https://backpack.tf/profiles/76561198834758731#!/compare/1545696000/1546041600

Untrace

Sale 17:

https://backpack.tf/profiles/76561198006544512#!/compare/1540771200/1540857600

https://backpack.tf/profiles/76561198255764866#!/compare/1540771200/1540857600

Sold for 7 keys + ~3 ref in sweets

Sale 18:

https://backpack.tf/profiles/76561198255764866#!/compare/1541030400/1541116800

https://backpack.tf/profiles/76561198137566942#!/compare/1541030400/1541116800

Bulk

Sale 19:

https://backpack.tf/profiles/76561198137566942#!/compare/1541203200/1541289600

https://backpack.tf/profiles/76561198140105203#!/compare/1541203200/1541289600

Sold for Showstopper Pipes(7.5) + ~2 keys in sweets

Total is 9.5 keys

Sale 20:

https://backpack.tf/profiles/76561198140105203#!/compare/1541289600/1541548800

https://backpack.tf/profiles/76561198121830870#!/compare/1541462400/1541548800

Untrace

Sale 21:

https://backpack.tf/profiles/76561198121830870#!/compare/1544572800/1544659200

https://backpack.tf/profiles/76561198350879574#!/compare/1544572800/1544659200

Untrace

Sale 22:

https://backpack.tf/profiles/76561198350879574#!/compare/1544659200/1544745600

https://backpack.tf/profiles/76561198142659865#!/compare/1544745600/1544832000

https://backpack.tf/profiles/76561198840748471#!/compare/1544659200/1544745600

https://backpack.tf/profiles/76561198296439158#!/compare/1544659200/1544832000

Untrace

Sale 23:

https://backpack.tf/profiles/76561198296439158#!/compare/1544832000/1545868800

https://backpack.tf/profiles/76561198834758731#!/compare/1545696000/1546041600

https://backpack.tf/profiles/76561198026129220#!/compare/1546041600/1546128000

bulks

Sale 24 - 30:

Sold for 16, 14.18, 14.17, 15.89, 15.49, 12.02 USD

Keys at 1.76, 1.77, 1.77, 1.68, 1.67, 1.79 USD

Totals are 9.09, 8.01, 8.01, 9.46, 7.19, 9.45, 6.72 keys

Total sales @:

6, 6.72, 7, 7, 7, 7, 7.19, 7.27, 8.01, 8.01, 9.09, 9.45, 9.46, 9.5

Buyers up to 7.6 keys,

Going with 8 - 9.5 keys