The disappeared countries. 1840-1970

Postal stamps can do a lot, this is widely known.
However, in this book of the Norwegian architect and Philatelist Björn Berge, they surprise the reader with another, previously unfamiliar property: the ability to open countries that have already disappeared from the face of the earth. You will find such fifty here: some of them lasted only a few weeks - for example, Eastern Karelia in Europe, the other half a century - an orange free state in South Africa. But the stories of all these countries are read with great interest. They are told through the postage stamps they issued, evidence of eyewitnesses, culinary recipes and works of art. Such countries in the period 1840-1970. They arose and disappeared on all inhabited continents, except for Australia