Alas, a sale appears.

2 recent sales, 4 years outdated.

Sale 1:

https://backpack.tf/profiles/76561198046941961#!/compare/1493510400/1494115200

https://backpack.tf/profiles/76561197963292494#!/compare/1494028800/1494115200

Sold with 10 keys pure for a Beams Wraith(545).

535 total.

http://www.tf2outpost.com/trade/29260701

B/O of 550.

Sale 2:

https://backpack.tf/profiles/76561198046941961#!/compare/1499212800/1499299200

Sold with a Steaming Mancer's(47) for a duped Burning Veil(525).

478 total rounding to 480.

Duped Burning Veil mini:

https://backpack.tf/profiles/76561198046941961#!/compare/1499385600/1499472000

https://backpack.tf/profiles/76561198057412106#!/compare/1499385600/1499472000

Sold with ~2 keys sweets for a FoD Zoomin' Broom(350), Scorching Lucky Shot(187.5), and a TF Logo Pencil Pusher(60).

595.5 total rounding to 600.

http://www.tf2outpost.com/trade/29261202

B/O of 600.

http://imgur.com/a/ALK5O

1x 2 month unsold at 450.

Calling it 450-600.

Beams Wraith mini:

https://backpack.tf/suggestion/594e340fcf6c75505157aae5

545 total.

Rolling with 480-535.