Keywords
adult, arm in arm, arms crossed, backdrop, backgrounds, blackboard, caucasian, caucasian appearance, caucasian ethnicity, chemist, facial hair, formula, full length, history, human, illustration, illustration and painting, looking, looking at view, man, mustache, occupation, one man only, one person, people, physics, professional occupation, real people, science, scientist, senior adult, senior men, stubble, text, white hair, stock illustration, royalty free illustrations, stock clip art icon, stock clipart icons, logo, line art, EPS picture, pictures, graphic, graphics, drawing, drawings, vector image, artwork, EPS vector arts, fine art prints, print, poster, posters, mural, wall murals, tid019t000074