(DAILYMAIL) — The mystery of how a woman could have been filmed while using a modern cell phone back in 1938 seems to have finally been solved.

Black and white footage of a young female chatting into a wireless handset – said to have been filmed at a factory in the United States in the 30s – has attracted over 300,000 plays on YouTube.

Conspiracy theorists hailed the clip as proof of time travel, citing it alongside other instances of old films that appear to show imagery of modern technology existing years before it was invented.

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