- Country: Finland
- Genres: Short
- Release: 2020-05-17
- Director: Mika Taanila
- Writers: Jussi Eerola , Mika Taanila
- Language: English
- Stars: N/A
- Runtime: 2 min
- Awards: 1 nomination
- AKA: Patentii Nr. 314805 (Finland) , Patent Nr. 314805 , Patent Nr. 314805 (Finland)
- Plot:
Finnish engineer Eric Tigerstedt solved the dilemma of sound-on-film already before the First World War. All images and sounds in this short film are produced from the surviving test materials originally created in 1914.
- IMDB:tt12299812