![](http://www.alamy.com/thumbs/6/F5F3C20B-3582-404F-8BEB-C1D6AE8BAABF/HM3FAP.jpg)
Hermann von Helmholtz by Ludwig Knaus
Size: 1322px × 1891px
Photo credit: © ART Collection / Alamy / Afripics
License: Licensed
Model Released: None
Keywords: antique, art, artist, arts, collectibles, deco, design, drawing, fine, gallery, historical, history, masterpiece, museum, oil, paint, painting, print, sketch, vintage, work