PPC (Presenta Pocket Ciné) Silent 9.5mm projector/viewer. Described on the box as 'The World's Smallest Ciné Projector'. Retailed in United Kingdom by Presenta Ltd, manufactured in Switzerland, 1926. British Patent Nos 259935 and 267812; other patents pending. With original cardboard carton. Presenta Pocket Ciné Silent 9.5mm projector/viewer with carton