I have a vintage bottle of that one. Try Ebay-just be careful and ask questions about how it was stored, etc. You don’t want a bottle they picked up from some estate sale, not knowing how it was stored. Also, try the sites which sell decants. There were some sites which sold well-kept vintage bottles of perfume, but most of them seem to be defunct now.
I actually find lots of good old scents and soaps at my local Sallie Mae (Salvation Army) store. I have no idea where they get them.