The countries present at the Expo 58 were numerous. But not all of them had organised a National Day during which a special cancellation was issued.

In order to be complete as possible, I will provide also the program of this National Day, in order for the collector to get a maximum information.

As such a normal looking cancellation would provide much more background of that specific day and about what happened that day.

For your own convenience I have put the countries in an alphabetic order. If there is something you can not find, check under the other sections: organisations or others.