The pages of the San Marino content are made of strong woodfree paper (170 gr.). On all pages the frames where you can place the stamps are indicated, usually with a picture of the stamps itself. On all these frames there are transparent mounts to safely place your stamps .
The content San Marino part IV contains the years 2012 till 2021.
The content consists of 60 pages;
2012:1-2,B1-5; 2013:1-2,B1-6; 2014:1-2,B1-3; 2015:1-3,B1,CN1;2016:1-2,B1-4; 2017:1-3,B1-2; 2018:1-3,B1-3; 2019:1-2,B1-5;2020:1-3,B1-4; 2021:1-3,B1.