Old Postcards

I go to France a lot, and am very fond of browsing street markets, especially ones with bric a brac and junk on sale. One thing I buy a lot is old postcards. Here are some very pretty ones -- the top left and the bottom right have delicate embroidered muslin flap which lift up to reveal a little message underneath. They are both birthday cards. The one with the fish is a card for April 1st -- on which for some mysterious reason people give each other 'poissons d'avril'. The battered looking one is an Easter card and it is made from some kind of early form of plastic, hence the damaged edges -- it is a pop-up with a pink flower revealed when you lift the flap on the front. The messages on them are often very touching -- the Easter one is dated from Toulouse, 1 April 1920. It says (and I translate!): "Dear Little Friend -- I am writing you this pretty card to prove to you that I love you -- only you -- and  as I promised before I left, I am only for you and not for the young ladies of Toulouse. Accept my darling a thousand kisses from him who thinks only of you".