The Glyphoscope was a stereo camera using glass plates, developed by the famous manufacturer Jules Richard from Paris. It was a compact, simple and affordable camera that could also serve as a stereoscope.
When searching for stereoviews to extend my collection, I always pay special attention to images of sites I’ve visited while working on my photo projects. I was delighted to found a slide of Fort de Troyon. It brings back good memories of my visit to this fort in 2015.
Last month I've acquired my second cabinet stereoscope. It's a beautiful late 19th century deluxe rotary viewer, built by the French manufacturer Mattey. This multiple-view device supports paper and glass stereo views in the both 45x107 and 6x30 formats.
The majority of French stereoviews from the First World War are not rare. They were produced in large numbers and are offered on many online auction sites. Much less is known about the photographers, manufacturers and sellers. That's why simple documents can sometimes reveal valuable information.
I’m collecting glass stereoviews since 2018. It started with the purchase of individual slides with images of the Battle of Verdun. My collection started to grow with the acquisition of a lot with 144 stereoviews in 6x13 format. All slides are from the same manufacturer: La Stéréoscopie Universelle, abbreviated LSU.