Antique 19th.century watercolors. Set of 3 by the same artist.

A set of 3 watercolors by a unknown (to me) artist from the mid 19th. century. Probably, Germany, Switserland, Austria or France. Some spotting or other minor traces of age. Colors are still fresh. Different scenery, same atmosphere. 3 sizes: 25x35cm - 9.84x13.77inch // 22.5x27.5cm - 8.85x10.82inch // 20c27cm - 7.87x10.62inch
Track and trace.