1.2 keys = ~ 1 key + 1.33 (give or take)

1.4 keys = ~ 1 key + 2.66 (give or take)

Classifieds: http://puu.sh/3XiuA.png - 11 minis listed for 1.2 keys and 1 below that. (first time I had to zoom out to take a screenshot.)

Selling at 1.2 keys and below:

http://www.tf2outpost.com/trade/13435613 - 1 key

http://www.tf2outpost.com/trade/13038189 - 1 key

http://www.tf2outpost.com/trade/13468047 - 1.05

http://www.tf2outpost.com/trade/13318259 - 1.2

http://www.tf2outpost.com/trade/13421147 - 1.2

http://www.tf2outpost.com/trade/13282287 - 1.2

http://www.tf2outpost.com/trade/12607358 - 1.2

http://www.tf2outpost.com/trade/13407939 - 1.2

http://www.tf2outpost.com/trade/13407939 - 1.2

http://www.tf2outpost.com/trade/13451574 - 1.2

http://www.tf2outpost.com/trade/13452333 - 1.2 - 1.4

http://www.tf2outpost.com/trade/13340408 - 1.2

http://www.tf2outpost.com/trade/13481515 - 1.2, parts

http://www.tf2outpost.com/trade/13475374 - 1.2

http://www.tf2outpost.com/trade/13182527 - 1.2

http://www.tf2outpost.com/trade/13282490 - 1.2

Unsold for 1.4 keys:

http://www.tf2outpost.com/trade/12956497 - 1.4, parts

http://www.tf2outpost.com/trade/13439260 - 1.4

http://www.tf2outpost.com/trade/13029907 - 1.4, 2 weeks

http://www.tf2outpost.com/trade/13387162 - 1.4, 3 days

http://www.tf2outpost.com/trade/13336991 - 1.4, 5 days

http://www.tf2outpost.com/trade/13452333 - 1.2 - 1.4

http://www.tf2outpost.com/trade/13449642 - 1.4