Subject categories
Communications, Infrastructure, & Transport → Communications - History
Communications, Infrastructure, & Transport → Telecommunication systems - History
Communications, Infrastructure, & Transport → Telephone - History
Documentary
Documentary → Documentary films - Great Britain
Educational & Instructional
Educational & Instructional → Educational films
History → History
Mathematics, Science & Technology → Bell, Alexander Graham, 1847-1922
People → Bell, Alexander Graham, 1847-1922
Short films
Short films → Short films - Great Britain