Watercolor painting signed Dornier (?) "Boats at the port of Vuaros" Spain

Painting made in watercolor on heavyweight paper representing "the port of vinaros" (handwritten indication on the back of the framing panel (with stamp, location, dating - 1987 - and transfer of the artist's name: see photos) sold with frame (without the glass which I remove, too risky). Dimensions of the view: 29 / 45 cm