30 July 1958
San Marino ..... (program of that day to be added).
San Marino, small country, was present with a quite small building. However, it was tremendous present through the numerous philatelic items at Expo 58. Besides their own set of stamps issued, they had different covers etc. to please the collectors present.
The mixed cancellations were the most known from San Marino (see below).
Official Expo 58 cover edited by Campo Rodan
The Official edited cover with logo of the country (edition is not identified)
Nice cover with a mixture of Belgian stamps and the San Marin stamps
Large cover with all Belgian stamps cancelled mixed with the stamps of San Marino
Set of two cards with embossed Expo 58 seal and a micture of Belgian stamps and San Marino stamps