Sale #1:

http://www.tf2outpost.com/trade/25947025

Sold for GE Kiss King (330) + 138 keys + some minor items (~0.6) + a $20 Amazon account (~10.8 keys @ 1.85 per key)

Seller:

http://backpack.tf/profiles/76561198096728532?time=1432882800 (May 29th)

http://backpack.tf/profiles/76561198096728532?time=1432969200 (May 30th)

Buyer:

http://backpack.tf/profiles/76561198034564616?time=1432969200 (May 30th)

http://backpack.tf/profiles/76561198034564616?time=1433055600 (May 31st)

((330 + 0.6) * 0.9) + 138 + 10.8 = 446.34; rounded nicely to 450 keys

Sale #2:

http://www.tf2outpost.com/trade/25797068 Sold for probably CS:GO items, sold within 1-2 days after changing their B/O to 400 keys

http://www.tf2outpost.com/trade/26133687 Buyer had a trade up selling it for 350 keys for a short moment. Realistically the sale was probably around 350.

Sale #3:

http://www.tf2outpost.com/trade/26120671

Sold with a Ghosts Slug (33.5) + 8 keys for a Duped Scorching Modest (275) + duped HOUWAR (~120)

Buyer:

http://backpack.tf/profiles/76561198044871940?time=1434006000 (June 11th)

http://backpack.tf/profiles/76561198044871940?time=1434092400 (June 12th)

Seller:

http://backpack.tf/profiles/76561198027902188?time=1433401200 (June 4th)

http://backpack.tf/profiles/76561198027902188?time=1434092400 (June 12th)

Modest + HOUWAR: http://www.tf2outpost.com/trade/26152463 offered on

(275 + 120) - (33.5 + 8) = 353.5; rounded nicely to 350 keys

Sale #4:

Sold for Eerie Crone's + $185

http://backpack.tf/vote/id/5570e21adea9e90b5c8b4578

Duped Scorching Modest:

Sale #1:

http://www.tf2outpost.com/trade/26133328

Sold with a duped HOUWAR (~120) + duped Heart Guad (~40) for a Tiger Conga (460)

Buyer:

http://backpack.tf/profiles/76561198044871940?time=1433660400 (June 7th)

http://backpack.tf/profiles/76561198044871940?time=1433746800 (June 8th)

Seller:

http://backpack.tf/profiles/76561198060976608?time=1433660400 (June 7th)

http://backpack.tf/profiles/76561198060976608?time=1433746800 (June 8th)

Tiger Conga: http://www.tf2outpost.com/trade/26134965 offered on

Sale #2:

http://www.tf2outpost.com/trade/25942939

Sold for a Duped Vintage Max (300+)

Buyer:

http://backpack.tf/profiles/76561198112256032?time=1431759600 (May 16th)

http://backpack.tf/profiles/76561198112256032?time=1431846000 (May 17th)

B/O was 249 keys, but this sold fairly quick.

The range for the modest would be 250-300 keys.

Duped Vintage Max:

http://www.tf2outpost.com/trade/25978104 Was offered 300 pure, most of the sellers are asking around 350 keys.