Talk:August von Pettenkofen

Latest comment: 9 years ago by WQUlrich in topic The "Pettenkofen box"

The "Pettenkofen box" edit

This so-called "box", formerly mentioned in this article and in an article on the Web Gallery of Art, is actually a chemical process for restoring old paintings invented by Max Joseph von Pettenkofer, not August von Pettenkofen. WQUlrich (talk) 19:16, 14 April 2015 (UTC)Reply