Prompt
Create a realistic portrait of Lyman J. Briggs, a middle-aged man from the early 20th century, dressed in formal attire, with a subtle background that hints at his work in physics and engineering, such as a faint image of a laboratory or a blueprint; he should be seated, with a gentle smile, and holding a pair of glasses or a book, conveying a sense of intelligence and leadership; the style should be reminiscent of classic photographs from the 1940s and 1950s.
