|source: A. Baggenstos, Von der Bilderschrift zur Schreibmachine, Zurich and Herrliberg 1977|
"S.A. Sphinx" is named as the producer, so we can assume that a "société anonyme", a stock company, was set up especially for the purpose of producing this machine. No traces are found of this company... (but then again, this just confirms that it is a big mistake to belief that "everything is on the net", no no, reality is bigger than the internet, many treasures still to be unearthed)...
And SAMUEL GERTSCH was the man who invented it...
|source: gooooogle maps|
Thank you, Samuel Gertsch, for inventing such a mighty typewriter!
|side view and type bar mechanism|
So now, we need two Sphinxes... in the meanwhile, we keep on dreaming....
P.S.: Some more of Samuel Gertsch's inventions are documented, e.g. a spindle (1918) and a lifting jack (1932)