Fix.

One Recent Sale:

https://backpack.tf/profiles/76561198004517334#!/compare/1494633600/1494720000

80-90% sure it sold for the 23 pure.

https://backpack.tf/profiles/76561197992493966#!/compare/1494547200/1494720000

Here’s buyer-side, lots of keys coming in but not going anywhere evidently, probably flipped quickly for the professor.

Additional by Marty:

https://backpack.tf/profiles/76561198074924284#!/compare/1500681600/1500768000 - 17 keys have matching histories here

http://www.tf2outpost.com/trade/29290062 - Matches the B/O

It sold as soon as the price was dropped to 17. However:

http://www.tf2outpost.com/trade/29280389

+

http://www.tf2outpost.com/trade/29272056

+

http://www.tf2outpost.com/trade/29261854

^Was 21 for 2.5 weeks before that.

http://www.tf2outpost.com/trade/29254652 - And actually 19 for several days as well before raising to 21

I think 23 flat has to be considered high if it can't sell for 19 or 21 over the course of several weeks. 17 on its own looks fairly low as well though. 17-23 seems appropriate in this instance.

17-23 it is!