Esophagoscopy, gastroscopy, bulboscopy as well as endoscopic-retrograde cholangiography-pancreaticography (ERCP) according to Prof. Dr. M. Classen, and H. Ruppin M.D. For training of endoscopy of the upper gastrointestinal tract, for catheterisation of the papilla vateri by retrograde instillation of contrast medium into the pancreatic duct system (Natural size, made of special plastic). Height: 35 cm., width: 98 cm., depth: 32 cm., weight: 11 kg.