Very rare Omani brass plate. Very heavy (5,5 kilo) for such a small plate: Maybe for use on a dhow ship? Design with 4 abstract fishes swimming around (see slide-show) similar to Chinese plate design in the 18th century. In Oman and Persia these fishes were also used in stamps on lead (quality mark) The uprights of Omani doors also contain fish motives (ref 1) but they look a slightly different. Very thick layer of brass patina on the back, so of considerable age. Diameter 54 cm.
The traditional Omani meal of mounded rice and meat with garnishes of many kinds in separate bowls is served on a large round metal tray.
Persian design with abstract fishes on an antique "lead plaque" (seal of quality)