Pragh (Prague) it is - diana mark without city. Seperate city mark cannot be seen on photo but it is C
maker could be FM or IM or ?M
Sugar tong in silver from Pragh
As I mentioned in one of your other posts, there is very little published information on 19th century Prague silversmiths. However, the city mark in a separate punch here indicates a date between 1866 and 1872. (The city mark was included inside the “Dianakopf” from 1872 onward.) Happily, there is a gold & silversmith listed in an 1865 Prague directory named Franz Miesler; indeed he is the only silversmith there whose surname begins with “M”. Though I have no other information on him, I feel reasonably confident he must be the “FM” here.