In 1867 Dagron demonstrates the possibility of reducing the glass view down to about 1 mm while retaining a considerable amount of information in the image. He develops during the siege of Paris in 1870 the transmission of microphotographs by pigeons.
Rochard filed two patents for applying Dagron's invention to dolls. The Rochard-Jouets identification on these documents suggests that he was not associated with Dagron's company but was instead a competitor.
The first of these patents, in 1867, transforms a doll's bust into an optical toy. The head includes a kaleidoscope to be watched through the slit of the mouth. The back of the head is open for carrying the ambient lighting. The upper chest is decorated with a necklace made of Stanhope lenses whose metal frames are inlaid in the porcelain. It is also lit from behind. The second Rochard patent, in 1868, describes a tool for the industrial manufacture of his lenses.
The observer's position in front of the doll's mouth and chest was uncomfortable. It is likely that most of the highly rare Rochard dolls were equipped very early with a wig and a dress that obscured the lighting holes and thus canceled the optical effects. The bodies are attributed to Jumeau or Barrois.
It seems that Rochard's activity ceased around 1875. His dolls could not benefit from the electric lighting invented in 1879 by Edison.
On January 6 in Newport Beach CA, Theriault's sells a 76 cm high Rochard doll with a rotating head, lot 17 estimated $ 80K. It still has 24 of its 28 original 1 x 1.4 mm Stanhope views. The kaleidoscope is missing. This doll is narrated by Florence Theriault in the video shared by Theriault's Dolls.
SOLD for $ 290K before fees