in what form?
A paper copy
Sherlock Holmes Baffled
The film was assumed to have been lost for many years until a paper copy was identified in 1968 in the Library of Congress Paper Print archive by Michael Pointer, a historian of Sherlock Holmes films. 
what is sherlock holmes baffled? A very short American silent film created in 1900 when was it released? 1900 who did the title role in it? UNANSWERABLE was it based on any novel? No who produced it? American Mutoscope and Biograph Company when was it rediscovered? 1968 from where? From the Library of Congress Paper Print archive
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Sherlock Holmes Baffled [SEP] Rediscovery
The film was assumed to have been lost for many years until a paper copy was identified in 1968 in the Library of Congress Paper Print archive by Michael Pointer, a historian of Sherlock Holmes films. Because motion pictures were not covered by copyright laws until 1912, paper prints were submitted by studios wishing to register their works. These were made using light-sensitive paper of the same width and length as the film itself, and developed as though a still photograph. Both the Edison Company and the Biograph Company submitted entire motion pictures as paper prints, and it is in this form that most of them survive.