Narrow-bandwidth Television Association
1929 Semivisor of ing. René Barthélémy for the French NBTV system
Advertisement for the Daily Express disc monitor kit
Replica by Peter Smith of Daily Express disc monitor
Denis Asseman is making a kit for a replica of the Daily Express monitor
Exposition of Denis Assemann's NBTV equipment at the Benelux meeting in the museum for radio amateurism Jan Corver in Budel NL, February 2002.
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John Logie Baird demonstrating his TV apparatus
John Logie Bairds autograph