Nice drop.

Sold for 15 Keys(Item IDs match)

http://backpack.tf/profiles/76561198074422554#!/compare/1458370800/1458716400

Sold for an Aces High Engineer's Cap(18 Keys), a Collector's Spec KS Black Box(~6 Keys) and 1 Key(25 Keys total, Outlier)

http://backpack.tf/profiles/76561198125791160#!/compare/1462060800/1462147200

Added 5 Keys for an Eerie Orbiting Fire Engineer's Cap(Outdated at 20)*

http://backpack.tf/profiles/76561198136981355#!/compare/1462147200/1462320000

http://backpack.tf/profiles/76561198134232616#!/compare/1462233600/1462320000

*Using this sale as supportive, since it should be used to update the eerie cap.

25 seems high compared to the other sales, and the fact that the buyer at the 25 sale later sold it for much less.

15 Keys should be fine.

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