Brass Listening Horn Illustration - Cutaway Poster

Brass listening horn illustration presents an antique-inspired acoustic device, with a flared horn connected to a wooden cutaway box. A circular membrane and small metal parts are visible inside the box, while curved brass tubing extends toward an open terminal fitting against a pale-blue ground. Physical, unframed print in A5, A4 or A3. Frames and styling accessories shown in mockups are not included.