http://www.tf2outpost.com/trade/7841202 Best offer is 20 keys, no interest.

http://www.tf2outpost.com/trade/8199428 buyout of buds + 5 keys, pretty recent.

http://www.tf2outpost.com/trade/5048489 not the only buyout of 1.33, too much.

http://www.tf2outpost.com/trade/8223081 buyout of bud + 2 keys, pretty recent too.

http://www.tf2outpost.com/trade/5449537 another buyout of 1.33

http://www.tf2outpost.com/trade/8125584 once again, but this one looks for SF weaps.

http://www.tf2outpost.com/trade/8193652 buyout of, apparently, a bud. pretty recent too.

http://www.tf2outpost.com/trade/7215725 this guy was trying to "quicksell" to me for 1 bud. Checking the current buyouts, this is no way a quicksell.

I haven't noticed pure offers, but I haven't clicked on all hidden offers.