A stereogram

Video/audio recording: Rollei da5324
Video editing: Avidemux 2.5.3, Pitivi 0.15.0
Audio editing: Audacity 1.3.13-beta

Music & extra footage from archive.org:
Philadelphia Symphony Orchestra: Ride of the Valkyries (78 RPMs & Cylinder Recordings)
Dance of the Doves; The Art of Spinning and Weaving (both Prelinger Archives)
Hindenburg Disaster (Stock Footage)

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