Salaams All, 
             
This ladder decoration is the highest decorative form of any blade in this sphere...It is called 
Kirk Narduban. I have seen some interesting descriptions of such fine work several of which are signed Assad Allah e.g. from 
http://armsandantiques.com Quote"The blade is forged from deep and rich kirk narduban forged wootz with a hardened dark edge and overlaid with koftgari decoration signed Assaddulah, 
likely apocryphal, though the quality of the wootz and the forging is an 
indication of a highly skilled smith".Unquote.
https://www.google.com/search?q=Kirk...sm=93&ie=UTF-8
Regards,
Ibrahiim al Balooshi.