Lets go!

Sale #1:

Sold for 44 keys pure

http://backpack.tf/profiles/76561198128705925?time=1430550000

http://backpack.tf/profiles/76561198128705925?time=1430636400

Sale #2:

Sold for 41 keys pure

http://backpack.tf/profiles/76561198060959999?time=1425742846

http://backpack.tf/profiles/76561198060959999?time=1425884400

Sale #3:

Sold for a C9 Executioner + Spec KS Aussie Black Box

39 + 20 * 0.9 = 53.1 keys rounding to 53

http://backpack.tf/profiles/76561198075817133?time=1430118000

http://backpack.tf/profiles/76561198075817133?time=1430377200

Sale #4:

Sold for a Smoking Tree + 5 keys + clean max (27 keys st the time)

19 + 5 * 0.9 + 27 = 48.6 keys rounding to 47 keys

http://backpack.tf/profiles/76561198075817133?time=1429426800

http://backpack.tf/profiles/76561198075817133?time=1429513200

Smoking Tree mini:

Using B/O at 19 keys, same as outdated bp.tf price as advised by The One

http://www.tf2outpost.com/trade/25864788

Aussie Black Box mini:

1 Sold for $49.71 at day of sale = 20.37 keys rounding to 20 (keys being $2.44 at the time)

http://steamcommunity.com/market/listings/440/Strange%20Specialized%20Killstreak%20Australium%20Black%20Box

Executioner mini:

Sold for 39 keys pure

http://backpack.tf/profiles/76561198041822925?time=1430373484

http://backpack.tf/profiles/76561198041822925?time=1430377200

Humor, handled by a master!

Also, many thanks to eM - Teeny Tiny Cat for compiling a current list of offers and their relative values as proof for keeping 53 in the range:

http://www.tf2outpos.../trade/25251325

flaming lantern towering pillar ~70

4 buds pure ~48

overclocked company man ~60

miami towering pillar + miami employee of the mmmph ~50

death at dusk nano ~45

pro aussie sticky, aussie grenade, spec sf grenade and spec diamond bk rocket ~50

mallard lucky shot ~30

burning backbiter's billycock ~85

dbd samur-eye ~20 (60 at the time)

haunted ghost tree and 10 keys ~60

ge guadalajara, planets kabuto and sweets ~60

aces headsplitter and overclocked softcap ~60

dbd company man ~90

phos tree and keys ~85

ge festivizer and 10 keys ~80

kaw ke minus a bud ~90

power surge company man minus a bud ~50

c9 executioner ~50

gut knife slaughter mw ~35

kaw tree and 29 keys ~65

smoking ke and 6 keys ~50

miami noble and sweets ~35

terror watt bonk boy ~55

smoking tc and 1 key ~45

ge defiant spartan ~50

steaming ke ~40

burning rubber glove ~55

flaming lantern olde baker boy ~75

40 pure