We perform Joseph Lange art authentication, appraisal, certificates of authenticity (COA), analysis, research, scientific tests, full art authentications. We will help you sell your Joseph Lange or we will sell it for you.

Joseph Lange was an 18th century Austrian painter. He was known mainly for his portraits, and most famously, painted portraits of Wolfgang Amadeus Mozart and his wife, Constanze. This unfinished portrait of Mozart would have depicted him at the piano. Lange also painted many other portraits of prominent Austrians of the era. Still wondering about an 18th century European painting in your family collection? Contact us…it could be by Joseph Lange.