Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 132,637 pages of information and 209,984 images on early companies, their products and the people who designed and built them.
Gnome Photographic Products, makers of darkroom equipment and projectors, and a few cameras, of 21a Working Street, Cardiff, Glamorgan, Wales. Telephone: 6974. Cables: "Gnome, Cardiff"
As well as making some cameras, Gnome seem to have sold a few rebadged cameras from other manufacturers such as the Adox Polo series. Gnome also imported film from Germany, made by Adox.
1947 Listed Exhibitor - British Industries Fair. Manufacturers of Precision, Photographic Equipment including 7 in. (17.8 cm) by 5 in. (12.7 cm). Industrial Enlarger, 2¼ in. (5.7 cm) sq. and 35mm Portable Enlargers, Lighting Outfits, Developing Tanks, Printing Boxes, Masking Frames, in fact all Equipment for the Amateur or Professional Photographer. (Olympia, Ground Floor, Stand No. A.1016) 
1954 Patent - Improvements in or relating to optical projection apparatus, particularly photographic enlarging apparatus. 
1971 Patent - Photographic Slide Projectors.