Month old price, now we have a bunch of sellers in this range:

First, Checking old price, still works:

http://www.tf2outpost.com/trade/11361977 @ 1

http://www.tf2outpost.com/trade/11286141 @ probably 1?

http://www.tf2outpost.com/trade/11352196 @ 1

http://www.tf2outpost.com/trade/10106452 @ 1, sold out, some adds

http://bazaar.tf/trade/241047 @ 1

http://bazaar.tf/trade/241061 auction, 1 ref offer

In between:

http://www.tf2outpost.com/trade/8846730 2 offers of 1ref, 1 offer of 1.33

http://www.tf2outpost.com/trade/10141073 1.11 ref

http://www.tf2outpost.com/trade/11228544 Offers of 1.00 and 1.11

http://www.tf2outpost.com/trade/11198965 Using another spreadsheet as base price, which goes for 1 - 1.33

http://www.tf2outpost.com/trade/9461127 Multiple offers of 1. Some offers of 1.33

http://www.tf2outpost.com/trade/8428871 Offers of 1 and 1.33

http://bazaar.tf/trade/241473 @ 1.22

Selling @ 1.33:

http://www.tf2outpost.com/trade/9347034 @ 1.33, 3 adds

http://www.tf2outpost.com/trade/11376343 @ 1.33, fresh

http://www.tf2outpost.com/trade/10974710 @ 1.33, 1 offer

http://www.tf2outpost.com/trade/11345004 @ 1.33, 1 potential add

http://www.tf2outpost.com/trade/11375209 @ 1.33

http://www.tf2outpost.com/trade/10695584 @ 1.33, 3 adds! (+1 unconfirmed)

http://bazaar.tf/trade/224256 @ 1.33, Potential add

Additional and counter proof are always welcome! We're here to discuss.

Post Scriptum: I know that this range has some bad reputation, but the other ones who suggested something didn't even bring proof. It took me about 1h30 to set this all up.