Four brass tokens. Issued by the "Mikveh Israel" School for the use of students and employees, 1885 or 1886.
The tokens have no note of the name of the currency (apparently, to refrain from breaching Turkish law. We can assume that their value was quoted in piasters or metliks). On the one side is their value surrounded by the inscription "Mikweh Israel" and on the other side are the letters "AIU" Alliance Israélite Universelle.
The tokens have the values of 1 (two tokens), ½ and ¼. Tokens of other values were not minted.
See: "Jewish Tradition in Art, the Feuchtwanger Collection" by Dr. Yeshayahu Shachar (published by the Israel Museum, Jerusalem, 1971), Item 741b.