Ontlader before 1867

"Ontlader" is a small black and white photograph by F.W. Funckler created before 1867. It depicts a device, likely used for scientific demonstrations, with a base and a series of metal rods and wires. The image is a part of a catalogue of scientific equipment, suggesting its intended audience was scientists or enthusiasts. The image's small dimensions, 66 mm by 44 mm, indicate it was likely intended for a printed publication. This photograph provides a glimpse into the history of scientific illustration and the development of scientific equipment in the 19th century.