20th century still life watercolor bouquet of hydrangeas in a golden frame

This watercolor painting from the 1920-1930s depicts a bouquet of hydrangeas with an 18th-century book placed behind the vase. Although unsigned, the technique is good. The painting shows some minor wear on the frame and paper, but nothing major. Detailed photos are provided for you to assess the object's quality, so feel free to zoom in. The dimensions of the frame are 46.5 cm in height and 42.5 cm in width. Photos are an essential part of the description.