Help to identify the author
 

Help to identify the author.
Two works, size 20x30cm, paper/watercolor, I think the beginning of the twentieth century.

Almost 300 views and no authorship, sorry::confused:...maybe then the cost will be what opinions:shy: (works with 2 sides attached to one sheet. Thanks in advance to everyone who responds:)

Photo-like prints.I may be mistaken,but the grain is visible, especially in the last photo???

Apparently book illustration. Chicco E. Vitzizzai WINGS OF MERCURY ed. The Turtle.
You can try to determine from the source data workbook.