Created by Samuel Hollyer, 1889
Created by Hans Thaddeus Hoyer, 1923
[update: some of this is inaccurate; see flow's comment below]
"Ex Libris [...] Benes;" features a skeleton playing the cello and a nude woman with claws. Signed in lower left, "AIB 09." (1909)
"Bucherzeichen Otto Brinckmann" depicts a sailing ship on the ocean. Unsigned.
Created by Willi Geiger, 1910
Created by G Scraby, 1917
Created by Arthur Engler, 1913
Created by E.G. Reuter
[see flow's comment below]
Created by M.D.
[¶ Addit: Actually, it's a griffin -- "a legendary creature with the body of a lion and the head and often wings of an eagle"-- thanks AWW!]
The Pratt Institute Libraries have a collection of more than 1200 Ex Libris (bookplate) images in their flickr stream.
"The Ex Libris Collection consists of nineteenth- and twentieth-century bookplates from private and institutional libraries. The plates feature finely detailed engraving and etching, and serve as outstanding examples of period book art and typography."The first six images above come from a selection of more than one hundred of the Pratt Libraries Ex Libris Collection posted at high resolution to LunaCommons
[The LunaCommons site - mentioned previously - contains a wealth of cultural material and is a potential (worthy) timesink. Essentially it's an easier way to access images from the family of collections among the LunaInsight browser portals arising out of the David Rumsey site]