Sale #1:

http://backpack.tf/profiles/76561198041763546#!/compare/1470096000/1470355200

Bulk. Not using

Sale #2:

http://backpack.tf/profiles/76561198041763546#!/compare/1469923200/1470096000

Bulk, again. Not using

Sale #3:

http://backpack.tf/profiles/76561198186166674#!/compare/1467504000/1467849600

Another bulk. Not using.

Sale #4:

Sold with duped C. Heart Mullet for a duped Circling Peace Sign Modest: http://backpack.tf/profiles/76561198041763546#!/compare/1470096000/1470355200

x+21=47

x=45-21=24 keys

Capped @ B/O of 17 keys: http://www.tf2outpost.com/trade/28411108

Using 17 keys

Mini on Modest:

Sold for: http://backpack.tf/profiles/76561198156315732#!/compare/1468627200/1468886400

x+11=25+21+12

x=58-11=47 keys

B/O of 45: http://www.tf2outpost.com/trade/28322466

Taking 45 keys

Company man mini: http://backpack.tf/suggestion/57cdc4698667472483350e35 Creds to TF2Maniac

Milkman mini: Buyer @ 10 keys: http://backpack.tf/classifieds?item=Milkman&quality=5&tradable=1&craftable=1&australium=-1&particle=59

12 keys should be fine.

Mini on Mullet:

Sold with 14 keys for duped Ghosts Stovepipe (35): http://backpack.tf/profiles/76561198075278690#!/compare/1470268800/1470355200

x+14=35

x=21 keys

Micro on Stovepipe:

Sold for 35 keys: http://backpack.tf/profiles/76561198053877033#!/compare/1471392000/1471910400

Sale #5:

Sold for Aces Gilded Guard: http://backpack.tf/profiles/76561198135886515#!/compare/1464998400/1466380800

Used to price the Guilded Guard.

Not using.

Sale #6:

Sold for Steaming Swagman's (13) + 7 keys: http://backpack.tf/profiles/76561198074408170#!/compare/1472256000/1474934400

Taking 20 keys

Swagman mini:

Being sold for 13 keys: http://backpack.tf/stats/Unusual/Swagman's%20Swatter/Tradable/Craftable/36

Conclusion:

2 sales @ 17 and 20 keys.

Taking 17-20 keys as the new range.

Additional proof and constructive criticism are welcome.

Thanks!