Long Lee Enfield front sight attachment

[BVZ24]

Is anyone familiar with how the Long Lee Enfield front sight attaches to the barrel? It appears to be simply silver soldered in place, but does the barrel or sight have a keyway like the later SMLE? Or does the front sight sit into a rectangular recess cut in the barrel?
Does anyone have a picture of the sight removed intact?

[Steve H. in N.Y.]

I salvaged the sight from a junk barrel once. Solder, but no key or recess.

[Warren]

It is just soldered on along with a small bit of metal both front and rear.
The solder appears to be soft solder....
from memory