The pages of the United States 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 United States part IV contains the years 1981 till 1990.
The content consists of 66 pages;
79-133,A7-10,B7-12,OM1.