Apricot Brandy. ca. 1920. Dutch. Jacob Jongert, maker (1883-1942)In the public domain. via https://www.mfa.org/collections/object/apricot-brandy-270410.
Travel poster for Hamburg, Germany (Deutschland). 1925. German. Willy Dzubas, maker (1877-1947). Collection of the Museum of Fine Arts, Boston. via http://spenceralley.blogspot.com/2018/12/lithographic-posters-early-twentieth.html.
Poster for the International Health Exposition held in Dresden. 1911. German. Franz von Stuck, maker (1863-1928). via https://www.mfa.org/collections/object/internationale-hygiene-ausstellung-dresden-international-health-exposition-dresden-532984.
Salamander Shoes. 1912. Austrian. Ernst Deutsch, maker (1883-1938). via https://www.mfa.org/collections/object/salamander-569074.
All of these posters except for the second one being in the collection of the Museum of Fine Arts, Boston. All works in the public domain. You can find them in many places around the internet but I found them here: http://spenceralley.blogspot.com/2018/12/lithographic-posters-early-twentieth.html.