looks like a nice needle. looks great for sinew stitching.
I don't know if anyone has tried this before but...
what i'm using today to sew up a quiver is a tip of a turkey quill. snip one off about 2 1/2" ,from one that glides through your punched holes.
reem out the inside a little, enough to stuff the end of your stitching cord into. then slice a thin piece of quill from the same feather and slide it into
the hole with the cord to snug it up.... works like a charm...wish I had thought of this years ago!