They are jeweller's marks from a Middle-Eastern gold market. The script is Arabic, or Arabic-based. Looks like two different marks, on top of each other; obviously the second guy didn't trust the first guy's mark.
Unfortunately for you, Middle-Eastern jewellers don't usually mark genuine sovereigns, only the copies made locally. Your coin is therefore most likely a locally-made copy, and not a genuine sovereign. Usually such imitations are made from good gold, though perhaps slightly underweight or slightly less fine than genuine sovereigns. There is a number included in the second counterstamp (the one on the right) but I can't tell if it is "21" or "22". This is the fineness mark. Sovereigns are supposed to be 22 karat. This Chard Coins page
shows a 22k imitation sovereign; this CCF thread
has a 21k imitation where the fineness mark was actually included in the die used to make the fake coins, rather than stamped on afterwards. Selling unstamped replica sovereigns apparently attracts big penalties in most Middle-Eastern countries.
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