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The first mark is the purity mark in Arabic digits, with the city assay mark above. It appears to be for Cairo, Egypt as far as I can tell, with the digits '18' below, so it?s 18k. The bird mark (an ibis) was the standard mark for gold from 1916 (although also occasionally used on silver, c1920).
The last character will be the date mark. It appears to be a ?western? letter ?O? although it?s a bit unclear. If it is, then it?s from 1938/1939. From 1941, date marks were also in Arabic characters.