Biofix flip book (or flicker book, flick book, folioscope, Daumenkino) of 3 gentlemen.
Size 60 x 42 mm. With metal clasp with the name Biofix on it. Ca. 1910. Extremely rare.
¶ Just before the World War I, the photo laboratory Biofix proposed to its customers an original flip book made in their shops with the pictures of those who wanted to. Biofix was a company in London, Paris, and Brussels. Each one is unique, although copies could be ordered afterwards, but that didn't happen in general.