Hard to find definitive proof for this, but it does need a drop.

Selling for 1 ref

http://www.tf2outpost.com/trade/11657107 2 days, nothing (price only dropped an hour ago)

Selling for 1.11

http://www.tf2outpost.com/trade/11637533 2 days, nothing (not auto bumped or bumped frequently)

Selling for 1.22

http://www.tf2outpost.com/trade/11705142 only 4 hours, not bumped

Selling for 1.33

http://www.tf2outpost.com/trade/9524921 a few recent adds, but still no sale. Most recent add bought a clean one and the one before got a dirty one for an unknown price (checked their bps and item histories).

http://www.tf2outpost.com/trade/11666635 unsold, only 1 day

http://www.tf2outpost.com/trade/11706819 unsold, only 3 hours

http://www.tf2outpost.com/trade/11049671 unsold for 3 weeks autobumped

http://www.tf2outpost.com/trade/11671803 unsold only 1 day, but relisted a few times as far back as 2 weeks: http://www.tf2outpost.com/trade/11185134

http://www.tf2outpost.com/trade/11541006 unsold for 5 days autobumped

http://www.tf2outpost.com/trade/11625314 unsold for 3 days

http://www.tf2outpost.com/trade/11578539 unsold for 4 days, maybe not bumped too much

http://www.tf2outpost.com/trade/11580618 unsold for 4 days though unbumped

http://www.tf2outpost.com/trade/11200886 unsold for 2 weeks though not bumped in 5 days

Not many on outpost, but also little demand. No buyers to be found either.

http://backpack.tf/classifieds/search/uncraftable%20moon Only 3 in the classifieds, the one for 1 ref is the same as the first link.

Any feedback is welcome.