Film: Night Fire Films
- 1970
The Hog Farm Movie (1970)
The Hog Farm Movie01970HD
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![The Hog Farm Movie]()
- 1976
Tanka (1976)
Tanka01976HD
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![Tanka]()
- 2004
Proteus: A Nineteenth Century Vision (2004)
Proteus: A Nineteenth Century Vision42004HD
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![Proteus: A Nineteenth Century Vision]()
- 1969
Out of the Maya Tombs (1969)
Out of the Maya Tombs01969HD
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![Out of the Maya Tombs]()
- 2008
Breaking the Maya Code (2008)
Breaking the Maya Code62008HD
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![Breaking the Maya Code]()
- 2011
Invisible Writing (2011)
Invisible Writing02011HD
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![Invisible Writing]()
