Portret van Lucas Jonker c. 1915

This portrait photograph of Lucas Jonker, created by the photography duo Koene & Büttinghausen around 1915, showcases the subject in a formal pose. The image captures Jonker's stern expression and features a close-up framing that emphasizes his face. The photographer's signature is visible in the bottom right corner. This portrait, likely a studio photograph, exemplifies the popular practice of capturing formal portraits in the early 20th century.