The green chairs in the Jardin du Luxembourg and the Jardin des Tuileries are an iconic symbol of Parisian parks. I've been trying to find some information about the history of their design and have had little joy. These days there are two main types, the ones for reclining. These rather dark green ones are in the Jardin des Tuileries.
As are these upright ones.
Here are some in the Jardin du Luxembourg.
These two are chatting.
Apparently, according to my mother who lived in Paris at the time, these particular ones were introduced in 1954. I can confirm, for a fact, that they had the same chairs in 1969...in the background is one of the first Maclaren buggies as well!