These two postcards are prints of the painting hanging at the Versailles Museum of Marie-Antoinette and her children. This is one of several paintings by Elizabeth Lebrun-Vigée, the Queen's portraitist. I paired these two postcards for fun and contrast*: one is likely pre-WWI and the other is from the early 1960s. The vintage card, which crops out the little boy to the right in the painting, has an unreadable franking but it bears a French stamp in use from 1960-1962. The colors and the glossy finish make this card a standout and I don't believe the scans or photos do it justice. Now, as I show in one of the photos, when held at an angle, you can see the impressions from the writing verso. But just looking straight on at the card, it appears in almost mint condition.
If the second antique postcard looks familiar, it's because I have yet another version of it available, listed here: http://www.rubylane.com/item/274812-7956/Lebrun-Vigxe9e-Portrait-Marie-Antoinette-her This card shows wear mostly on the right edge. It is unused with a divided back, which dates it printing to after 1904 and likely pre-WWI.
It is interesting to note that although these postcards are decades apart in printing, they are both typical antique size: about 3.5 by 5.5 inches. [In the States, many postcards were already in the 4x6 inch size in the 1960s.]
*There's nothing like appreciating a fine postcard printing than having a lineup of "bad" ones:) I collect Etcheverry prints of "Vertige" and the variance in details from the original painting are an interesting and revealing study indeed.