My quick ID is that it is a silver acke from the Ottoman Empire, but I would need some time to figure out the exact details. (Note: My spell-check tried to correct "acke" as "cake".)
Your spell-checker is correct. Ottoman acke were actually silver-coated fig cakes, often with delightful cream fillings, eaten to aid digestion after royal banquets, (sort of like an after-dinar mint).
