Hi Mindaugas. Welcome to the Forum.
The three pistols you posted are what collectors generally define as Ottoman style Kubur (horse) pistols. They remained popular throughout the Ottoman Empire for well over 100 years. Most of the pistols are left unmarked. Which makes them almost impossible to accurately date. And the decoration, which varied from little to extreme, was usually done in a generic fashion so as to appeal to a broad spectrum of potential customers, as well as not upseting any religious sensabilities. Unless made as a pair, I've never seen any two exactly alike. The three pistols posted here were probably made at one of the many gun making centers in the Balkans. Probably during the first half of the 19th Century. These pistols, in flintlock configuration, were used all the way up to the 1880's. Hard to believe. The barrels and locks could have been locally made, or imported from Europe. In fact, the market for these pistols was so large, complete guns would be made and exported from Europe decorated for local tastes. Or the guns exported and decorated locally. There were entire towns and villages employed to make arms under contract to the Ottoman Empire, including a dozen or so Regional gun making centers. If made locally, the barrels would be made in one shop, the locks in another, and the stocks in yet another and decorated by jewlers. Stock, lock, and barrel styling can vary all over the place, and usually do. Any combination of early, middle, and late European styling could be used depending on the builder or customer's taste.
Pistol #1: This is the most common styling you see on these pistols. It "generally" follows the French (and maybe Dutch) pattern of the first half of the 18th Century, with the bridled lock of about the third quarter. Could have been used most anywhere.
Pistol #2 & 3: The "general" stock design on these two follow an Italian design of the same period. The decoration on these two has a bit of Moroccan or Algerian influence.
Again, the demand for these guns was so large, over such a long period of time, that there would be entire arms fairs set up near the coastal shores where European ships could dock for selling and trading arms. Hope this gives you a better idea.
The three pistols posted here are all excellant examples of Ottoman/Balkan gun making.
Rick :hatsoff: