For 1927, the model names were standardised, with the sidevalve machines named Touriste and the OHV models named Sport.
The company was hard-hit by the sudden economic downturn of 1929 and despite the high quality of its machines closed that same year.
Sources: Tragatsch p276, Wikipedia NL
Notes
Tragatsch spells the Belgian marque Sphinx.
There is record of a Sphinx brand built (or marketed) in Paris, supplied with a 100cc ROB engine. Other marques with this name: Sphinx
