![](http://www.alamy.com/thumbs/6/270494E9-1DF1-401F-8DDA-F99C93436EB9/T3Y0DM.jpg)
Archive image from page 215 of Die Physiologie des Kreislaufes (1922)
Size: 2058px × 972px
Photo credit: © Bookend / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: archive, book, drawing, historical, history, illustration, image, page, picture, print, reference, vintage