Just wondering if any of this coins can be identified. 1. 1.9 grams 14mm, metal copper? late roman empire, maybe byzantine/ 2. 0.9 grams 9mm, metal? Greek, Modius or lyre on reverse 3. 2.3 grams 17mm, metal copper, Islamic, Ottoman? 4. 3.1 grams, 15mm metal ? ottoman, Persian? Appreciate the help, coins maybe can not be identified, Thanks