SHIELD .. your thoughts welcomed

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I have had this shield for many decades but have failed to get a positive ID on it , even to the part of the world ... there have been many suggestions ..China , India, Persia, Ethiopia, Sudan .... but nothing with any more evidence than gut feeling and guesswork .... so I appeal to you all out there to help me solve this puzzle and place this shield in its correct context within my collection !
Diameter is 53 cm and it is painted hide .