Willi Scheuermann ( 1885 – (after) 1959) was a German illustrator and postcard artist in Berlin. He was more known as John Wills. His humoristic post- en greetingcards were very popular between 1910 and 1930, nowadays they can be found in many collectors collections.
Bondage is rather rare to be seen in these postcards, which is different for spanking. I can really recommend viewing my online collection spanking postcards on my other blog.