I received an update from Dior regarding the availability of Diorama (1949) and Diorling (1963). Although these perfumes do not seem to be listed on their official website, I was sent the information that you can purchase them through the Dior boutique located on Avenue Montaigne in Paris.....
I think that many people thought that these great classics were discontinued, so here's some happy news for them.
The Dior representative added that they do not sell them online and recommended using the following fax number to order them: 00 33 1 40 73 57 95
As I already mentioned, you can also find them at Roja Dove's Haute Parfumerie at Harrods in London.
Boutique Dior is located at 28-30 Avenue Montaigne, Paris 75008.