Slight drop.

Sold for 15 Keys(1 Key was in metal)

http://backpack.tf/profiles/76561198142401406#!/compare/1461801600/1462233600

Sold for a Strange Spec KS Frying Pan(~9 Keys) and a Genuine Horace(6 Keys)(15 Keys total)

http://backpack.tf/profiles/76561198051597690#!/compare/1458777600/1458864000

Sold for a Dead Presidents Well-Rounded Rifleman(16 Keys)* and ~3 Keys in Sweets(19 Keys total)(B/O was 18)

http://backpack.tf/profiles/76561198119629032#!/compare/1459814400/1459900800

http://www.tf2outpost.com/trade/28032636

*Rifleman didn't have all-class hype at the time.

Sales seem to fit, 15-18 Keys should be fine.

Additional Proof/Counter-Proof/Constructive Criticism/Feedback is always appreciated.