The Shadow Line
Authors: Op Den Kamp, C.
Abstract:In THE SHADOW LINE, a curious film scholar chronicles her search in the world’s largest library for unidentified earliest motion picture material registered for copyright, 130 years after Librarian of Congress Ainsworth Rand Spofford signs off on it, questioning the reasons for its mysterious status.
https://www.youtube.com/watch?v=z3oW7tHMGXk
Source: Manual