Several available for 1.4-1.6:

http://www.tf2outpost.com/trade/10573954 unsold at 1.6 keys for 1 week

http://www.tf2outpost.com/trade/10739157 unsold at 1.6 keys

http://www.tf2outpost.com/trade/10740690 unsold at 1.6 keys

http://www.tf2outpost.com/trade/10765030 unsold at 1.6 keys

http://www.tf2outpost.com/trade/10763790 unsold at 1.5 keys

http://www.tf2outpost.com/trade/10642651 unsold at 1.4 keys for 5 days

http://www.tf2outpost.com/trade/10677509 unsold at 1.4 keys for 3 days

http://www.tf2outpost.com/trade/10729137 unsold at 1.4 keys

http://www.tf2outpost.com/trade/10729216 unsold at 1.4 keys

http://www.tf2outpost.com/trade/10772751 unsold at 1 key

Several unsold at 1.75-1.8 for quite some time:

http://www.tf2outpost.com/trade/8357725 unsold at 1.75 keys for 3 months?

http://www.tf2outpost.com/trade/10334055 unsold at 1.8 keys for 2 weeks

http://www.tf2outpost.com/trade/10627323 unsold at 1.75 keys for 6 days

http://www.tf2outpost.com/trade/10640621 unsold at 1.8 keys for 5 days

http://www.tf2outpost.com/trade/10670823 unsold at 1.75 keys for 4 days

http://www.tf2outpost.com/trade/10672195 unsold at 1.75 keys for 4 days

http://www.tf2outpost.com/trade/10679891 unsold at 1.75 keys for 3 days

Some more unsold at 1.75-1.8:

http://www.tf2outpost.com/trade/10762339 unsold at 1.8 keys

http://www.tf2outpost.com/trade/10768550 unsold at 1.8 keys

http://www.tf2outpost.com/trade/10772642 unsold at 1.8 keys

http://www.tf2outpost.com/trade/10775317 unsold at 1.8 keys

http://www.tf2outpost.com/trade/10778286 unsold at 1.75 keys