Portrait Of A Bearded Gentleman Wearing A Pince Nez Franz von Lenbach (1836-1904)

The picture has something of this: people, portrait, man, wear, side view, elderly, mustache, facial hair, profile, scientist, bald, music, leader, facial expression.
Perhaps it’s a painting of a man with a long white beard and wearing a black shirt with a striped tie and glasses, standing in front of a dark background.