4.5X3.5 Vintage sepia matte finish photograph signed in blue fountain pen ink by Artturi I. Virtanen adding the date; "10.9.1948." In excellent condition.(1895-1973) Artturi Ilmari Virtanen was a Finnish chemist and recipient of the 1945 Nobel Prize in Chemistry "for his research and inventions in agricultural and nutrition chemistry, especially for his fodder preservation method".He invented AIV silage which improved milk production and a method of preserving butter, the AIV salt, which led to increased Finnish butter exports.This lot came from the Jim Wiggins collection we purchased in July 2022. Jim Wiggins accumulated the most unique and valuable autograph collection over a period of 70-plus years. He obtained his collection either in person or by writing to persons of fame and notoriety. Comes with a full Letter of Authenticity from Todd Mueller Authentics.