Nomadic swords

[ariel]

And here is most likely an example from the Qipchaq armamentarium.
This one is in an unbelievably well-preserved condition: the soil must have been highly "hospitable" for a 10-11 century steel.
Here the tunkou is L-shaped with the longer arm going next to the edge. The last pic shows how it was made: a thin plate of iron was wrapped around the ricasso and the two were forged together. This one is diamond -shaped along the entire length and again, the distal part of the blade is double -edged.