I believe the first is an antoninianus of Gordian III (Roman Imperial), Sol Oriens reverse (ORIENS AVG). Third is a Sassanian drachm, I believe Hormazd IV. Both look okay to me. You might want to get more opinions on the ancients board, though. Last one looks to be an Almohad dirham, 12th - 13th century Spain or North Africa (I think)...I know nothing about these, so I hesitate to offer an opinion.
Perhaps the moderators will move this post over there for you. Otherwise, simply select the "Ancient, Greek, Roman and Medieval Coins" forum from CCF's list of forums.
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