Side by side photos (both black and white) of Max Planck. One is of Planck as a well-coiffed young man in 1878. The other shows a disheveled and, frankly, crazed looking Planck in 1901.
https://files.mastodon.social/media_attachments/files/111/579/720/463/012/527/original/53d2f407cc38dc23.jpeg