On Tuesday I got five postcards from San Marino.
One of them shows the Three Towers of San Marino. The Three Towers are a group of towers. They are located on the three peaks of Monte Titano. The towers are shown on San Marino's national flag and coat of arms.
3D Printing Revolution (from set of three) (issued 10-03-2015)
Fight against gender-based violence (from set of four) (issued 17-03-2014)
International Year of sustainable energy for all (from set of four) (issued 09-05-2012)
with a pictorial postmark showing the First Tower
Thank You very much William!