Jean-Baptiste Oudry, "Belphagore" (1734), brush and black ink, gray wash, heightened with white gouache, on blue paper; 12 1/4 x 10 1/4 inches (image via public domain, all images courtesy Getty ...
You probably have old paper items tucked in drawers that look like clutter but can quietly be worth hundreds or even thousands of dollars. From forgotten tickets to outdated manuals, collectors pay ...