As to originality ...This is of original shapes and forms
*See Note below .. It should be remembered that
the hilt only was designed by one of the wives of Saiid Bin Sultan...AKA Saiid the Great...Sheherazad was her name...Persian...
There are in fact three designs of Al Saidi Khanjar that have developed from the original form which in my estimate came into being in about 1830....based on the Muscat Khanjar Scabbard but with an Indian styled and decorated Hilt. It may have 4 or 7 rings.
Note * However, to be perfectly clear over the past 50/80 years the form has been fused or amalgamated ...See
http://khanjar.om/Types.html and looking at Al Saiidi Khanjars there were 3 types ....The form most often seen today is a mixture of type 2 and type 3; Simple as that.