This is a black and white engraving depicting a man operating a large, coiled tube suspended within a wooden frame. The man is seated on the ground, facing right, and is blowing into one end of the tube. He is muscular, with short curly hair, and is wearing a short tunic and sandals. His posture suggests effort as he operates the device. The tube itself is the most prominent feature. It's a large, spiraling, snail-shell-like structure, suspended by chains from a triangular wooden frame. The frame provides support and keeps the tube elevated. The background is filled with closely spaced vertical lines, creating a textured effect. At the top right corner, the number '81' is visible. Below the image, the Roman numeral 'XXXV' and the text 'Tubo Cochleato' are inscribed. At the bottom, there are three small circular shapes. The overall style is reminiscent of scientific illustrations from the 16th or 17th century.