For starters, in the 3rd movie, a "C. Gilbert & Co." "Geisha" gramophone with a morning glory type horn makes some appearances: Then, there's a gramophone (possibly the same one from the previous film) with a massive Cygnet style horn (again, similar to the horn from the gramo. from the previous film) in the 4th movie: Now, there was a C. Gilbert and Co. gramophone company making gramophones in the UK in the '20s/'30s, but all of these were portables or internal horn machines. Again, the only clue to the brand name is the reproducer, which may have been changed by some previous owner before the Warner prop department acquired it, but then again the machine might be a frankenphone made from random parts for the film. The cygnet horn's obviously a fake, but one wonders how such a horn would sound on a machine in real life
