Reference..
A...
https://en.wikipedia.org/wiki/Yemenite_silversmithing
B...
https://www.researchgate.net/profile...ication_detail
To be fair to the thread starter the heading does state..
Yemeni/Omani Jambiya differences Thus how to compare the two since almost the entire population which included most of the Jewish Yemeni silvermakers left the country for reasons we all know … The few remaining have also now gone. This virtually wiped quality Jewish Yemeni work off the map. As described in Ref.A AND in the conclusion at Ref B.( An excerpt states Quote''
Conclusion Operation “Magic Carpet” brought most members of the Jewish community from Yemen to Israel. Craftsmen left with their families and the millenary-old tradition of silversmithery died in Yemen''.Unquote.)
The brilliant book by Gracie does focus very greatly on the skills of these past masters but they are all gone now therefor it is difficult to compare roughly sand cast silver decoration with Omani work...In fact it is impossible.. The weapons shown are post 1948. The silver is poor quality and sand cast.
It may be noted that Muslim Yemeni people looked at silversmithing as an unclean occupation and wouldn't do that work before 1948..
Ibrahiim al Balooshi.