Bigger ciccada brooch

I believe this brooch is earlier than the other one I posted. I think it's maybe 60's or so and certainly from France. Thats the only country they were crazy enough to make those kind of things.
He is a little smaller than I thought, about 7cm, but I'm sure you get noticed when you have this brooch on.
This fellow started my mini collection. I knew I had to have more when I saw him, he look so very real to me. I haven't really worn him yet, but I certainly plan to do so soon. Anyone a better idea on its age?