Unpriced. I've had this sitting in a tab for over a week now, not sure why I didn't post it sooner.

Sold for Blizzardy Storm Defiant Spartan (~16) + Spec. S. Black Box with parts (~2 keys) + S. spec Wrench (~1.5 keys) + Pro. S Market Gardener (~3.5 keys) + Pro. S. Shotgun (~5 keys) = ~28 keys

http://backpack.tf/profiles/76561198061113506?time=1439967600

http://backpack.tf/profiles/76561198061113506?time=1440226800

http://steamcommunity.com/market/listings/440/Strange%20Professional%20Killstreak%20Market%20Gardener

http://steamcommunity.com/market/listings/440/Strange%20Professional%20Killstreak%20Shotgun

Other recent sales on this are either untracable or SCM.

Outside of a duped one no others have sold in almost a year and that was back in June.