Double-sided watercolor castle landscape

Vintage double-sided watercolor, 20th century period, in beautiful condition. It represents a medieval castle in a landscape of soft tones, an annotation is visible at the bottom left (see photos). The back has a different pattern with beautiful lettering but cut out at the edges (probably an attempt at an old advertisement?). This little painting can be turned over according to your decorative desires and will bring a deliciously vintage touch to your interior.