This is a lovely creamy white bowl decorated in yellow flowers and brown leaves. I could not find an artist or potter named Dosa, but Gto is the postal abreviation for Guanajuato Mexico, a region well known for majolica and Talavera pottery.
The bowl measures 9" across and 2.75" high.
The bottom of the bowl is stamp marked under glaze: Decorado a mano / Dosa, Gto., Mex.
The bowl is in very good condition. Small, all-over crazing is seen inside and outside the bowl. There are no chips, flea-bites, cracks or repairs.