portrait of Eduard Pfyffer exhibit in the library hall of ZHB Luzern (Switzerland) [
Philipp Jakob Schwegler
/ This image is from the collection of ZentralGut.ch and has been published on Wikimedia Commons as part of a cooperation with Wikimedia CH. Corrections and additional information are welcome. -- Public domain -- http://commons.wikimedia.org/wiki/File:ZHB SoSa Portrait 167 cropped.jpg]