African Native plate

This is an awesome handpainted piece of pottery. It measures 7 1/4" diameter,and is signed on the back by the artist. I have included a photo of the signature though I cannot make it out. It is Australian, I believe. It depicts the profile of a warriers face, spears, and distant trees which appears to be the outback.There is crazing in the glaze. No damages, chips, or cracks. Such a wonderful item! Not sure of the age. I have personally had it 15+ years, and aquired it at a tag sale.