On page 309 of the book 'The Mortier Story' you can read about a keyboard organ that was manufactured by the Mortier firm and installed in the Saint Lambertus church in Antwerp. According to pastor De Vos (in an interview with Karel Beunis) this organ had originally been installed in cinema 'Trocadero' in Antwerp, and he appears to have remembered this correctly as in newspaper 'De Nieuwe Gazet' of 18 May 1926 we found the announcement below. For this show, the organ was played by none other than Mortier employee August Bax!