The first stamp I found at the back of my postcards for Viridian's Sunday Stamps
theme today, 'pets' is a funny one. It's from the second part of a series called
Winter Tales. Designed by Claus Bigum and issued in 2011, the stamps show
Danish winter past times. This particular stamp shows a dog walker.
The second ones are mastiffs, one of the ancient breed of dogs. The two stamps
are issued by the Russian Federation on 15 March 2002. On the left is a bull mastiff,
said to be a cross breed between a mastiff and a bulldog. On the right, is a
Brazilian mastiff, also known as Fila Brasileiro.