Hi Jeff
Your pistol is what is commonly referred to by collectors as an Ottoman Kubur (horse) pistol. These were primarily made/used during the first three quarters of the 19th Century. (The locals used the flintlock well after the introduction of the percussion period) These pistols were extremely popular throughout many of the Ottoman countries. Your pistol appears in good condition and is typical of these pistols. It was probably made at one of the many small gun making centers in the Balkans. Often, these pistols were made with barrels, locks, and hardware that were exported from Europe (especially Italy) and assembled and decorated locally for local taste. They are often unmarked as the builders did not want the pistols traced back to any specific gun shop, as they were sold to both friend and foe alike. The decorations were usually done in a generic form so as not to disturb any religious sensibilities. Even if maker marked/signed and translated, it's usually impossible to trace the maker back to a shop. They just didn't keep the kind of records the Europeans did.
Today, with prices heading upward, my guess is your pistol might fetch $500-600.00 at auction. Even with prices heading up, these guns still do not fetch the pricing of their European counterparts. There are simply not as many collectors for them. Plus, these pistols were made by the thousands continuously through much of the 19th Century. So there are many examples still available today.
Your's is a genuine pistol. Not a later tourist copy. And in much better than average condition. A nice example. Hope this helps.
Rick