Finally.

Sold with a Lime Bill's Hat(~2.5 Keys at the time) for a Green Energy Plumber's Pipe(19 Keys with Overpay) and a Green Confetti Hotrod(13.5 Keys with Overpay)(~30 Keys total)

http://backpack.tf/profiles/76561198173211595?time=1429772400 -> http://backpack.tf/profiles/76561198173211595?time=1429858800

Sold for an Aces High Surgeon's Stahlhelm(21 Keys with Overpay) and 9 Keys(30 Keys total)

http://backpack.tf/profiles/76561198079639768?time=1429772400 -> http://backpack.tf/profiles/76561198079639768?time=1429858800

http://www.tf2outpost.com/item/440,3713832432,616,5 Stahlhelm History

http://www.tf2outpost.com/trade/25785478 Key Histories(IDs also match on bp.tf)

Two sales, 30 Keys should be fine.

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