The inscription reads:
al-maqarr al'ali al-mawlawi al-amiri al-kabiri al-'alimi al-'amili al-maliki al-salihi 'azza nasrahu (the lofty authority, the lordly, the great amir, the learned, the diligent, [the officer of] al-Malik al-Salih, may his victory be glorious).
Three Sultans in the fourteenth century bore the title al-salih: Sultan Isma'il I (743-6/1342-5), Sultan Salih (752-5/1351-4) or Sultan Hajji II (783-4/1382 and 791-2/1389-90). In his discussion of a tray stand in the Nuhad es-Said Collection also in the name of Sultan al-malik al-salih, Dr James Allan discusses the difference in style which developed between the first two and last of these sultans and on this basis links it to the first two sultans in date (Allan, James W.: Islamic Metalwork, the Nuhad es-Said Collection, London, 1982, no.19, pp.96-7). The lotus scrolls in the present bowl are very close indeed to those on the tray stand, so the same date span can be proposed.