Louvre Astrid

I just received a 7 ml bottle of this timepiece from an old family friend’s heritage, and I’m honoured to give the very first ratings and have the first review of this gem.
To be honest, according to my previous experiences with the products of the Czechoslovakian market, I expected some low quality stuff, imagined a boring grandma scent, something like 4711 Tosca, but Louvre overwrote all my expectations.
It is a sophisticated, very-very refined, aldehydic floral-powdery scent, in the footprints of Chanel No.5. The most surprising thing was it’s intensity: very potent, intensely radiant, and seems lasting forever.
Good old days…
I wonder when it could have been made, because I haven’t found any reliable sources about Louvre’s release date.
Any help would be appreciated!