After doing a minimal amount of research , I learned the Syria had forbidden export of antiquities since 1964 .
I'd guess (for certain) that the only legit market for your items would be within Syria , per their laws .
Identity of your items as to actual dates , metal purity , source or origin & scarcity/demand for the coins is where to start .
Plenty of fakes abound , when it comes to antique coins , so maybe someone in your country could help with that part too .
Best of luck with finding buyer(s) , there in Syria , anasmath84 !