sellers

http://www.tf2outpost.com/trade/27436969 8 keys

http://www.tf2outpost.com/trade/27376903 offers

solds

http://imgur.com/FIly9cG sold ~16 keys items

http://imgur.com/FIly9cG sold ~8 keys mixed

29 more refined was offered in addition but not accepted

http://imgur.com/bmhNtP4 sold 7 keys pure

These are rare and expired; thus, sales are limited.

Because they are a usable item they are consumed immediately upon the trade, thus they are not traceable.

The items traded for are also not traceable as the traded items are also placed in the unknown alts bp.

disclaimer = I own some

range suggestions appreciated.. Polar??? Woifie??? Puddilicious???