You're far too modest, Walter.
It is Pierre Servais' first post-war creation. As to a designation, I don't know if it was the PS.2. My contemporary source refers to it only as the Servais Biplan of 1947. Maybe it was given a designation subsequently?
It is referred to obliquely by Pierre Gaillard when he mentions its successor, the 1950 PS.10 'Paul Vergnes' parasol monoplane. I know of no other photos of the tiny 1947 biplane.
Take it away, Walter.