I have two bottles of it that I've been nursing and preserving since the 1980's. It's one of the most original fragrances I've ever owned. It's a citrus fragrance based predominantly on a clean, soft and elegant and heart achingly beautiful petitgrain note accord. Terrible, appaling longevity, however, and all my subsequent purchases of this particular fragrance boxed or unboxed have not proven successful. It has a tendency to deteriorate very easily I suspect because it is certainly made of up very simple and mostly natural citrus elements.
The database has it incorrectly listed it as a Lacoste fragrance. Lacoste actually commissioned Jean Patou to make it and eventually Jean Patou bought the Lacoste fragrance rights, though they have, I believe, since then reliquished the Lacoste brand.
You are correct in noting, as the ad correctly does, that it's Jean Patou Lacoste Eau de Sport. It was made in 1968 as the sports version of Jean Patou Lacoste EDT, which was created in 1967 by Jean Kerleo when he then took over as the chief nose of Jean Patou. Eau de Sport is also a Kerleo creation, as, of course, are Eau de Patou, Patou Pour Homme and Patou Pour Homme Prive. Jean Patou Lacoste Eau de Toilette bears a striking resemblence to Creed's Acier Aluminium, or, rather, I should say Creed's Acier Aluminium bears a striking resemblence to Jean Patou Lacoste EDT since it come out four years latter.
I also have the EDT version and that one is a safer buy if you can find it. I would NOT trust the bottle being offered on ebay, especially as it appears to be without a box.