Received from Matthew (Canada).
Painting on a piece of cardboard.
Received from I. J. (Finland).
Painting on a piece of cardboard made by his wife.
This postcard was sent by Hildegard (Belgium).
At first sight I thought: "What's that?" A completely white card?". But then I realised that in fact it's written in Braille language. It says: "Only with your heart you can see clearly". I think it's an appropriate message...