DuMont

Click for a salesman's handbook

180 (Cossor 437) ca 1937   Click for advertisement	181 (Cossor 137) ca 1937   Click for advertisement
180 (1938) 14 inch. Click for sales brochures	180 (1939) 14 inch. Click for sales brochures
181 (1939) 14 inch with radio. Click for sales brochures or for photos of a surviving set	182 (1938) 14 inch. Click for sales brochures
183 (1940) 14 inch. Click for sales brochure	183X (1941) 14 inch.  Click for sales brochure
184 (1939) 12 inch. Click for sales brochure	190 (1939) 9 inch. Click for sales brochure
192 (1939) 9 inch.  Click for sales brochure	195 (1940) 20 inch.  Click for internal memos

This picture, from a 1950s DuMont brochure, shows Allen DuMont with a prototype set. It looks as if it has a magnifier on the screen, and it is unclear if it is a mechanical or electronic set.