You don't have to say anything on a picture postcard.
They could have been painted from picture postcards and probably were.
He came back with a pile of picture postcards in his hand.
Much of our landscape does still look like a picture postcard.
At the end of that same month I received a picture postcard.
The place never stopped being a picture postcard to him.
Another had more of those old picture postcards that he seemed to like so much.
George sent me a picture postcard of the place once.
Friends from all over would send me picture postcards of it.
He got up and returned a few minutes later with a picture postcard.