Alex and Philip,
Thankyou for continuing this discussion.
I think I should add a picture of the entire piece, so that you can see why I was suprised to notice the layering.
I've had this knife for a long long time and have only recently 're-found' it.
I asked a question about its identity a while ago and was pleased to find out that these Indian/Nepalese hunting type knives do have a following.
I did not however expect that the balde would be anything other than plain steel.
Imagine my suprise?
Philip.
Absolutely, I'm happy whatever it is. I am just happy its not a land-rover leaf spring!

I am still smiling at the unexpected bonus of having this interesting new aspect to something I'd taken for granted for so many years.
Gene
P.S.some decent daylight here would be nice to get some better pictures!

Bloody overcast days.