The pages of the Belgium Railways, Airmail etc. 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 Belgium Railways, Airmail etc. contains the years 1866 till 2013.
The content consists of 76 pages;
A1-4,BG1,E1,S1-5,T1-5,JD1-2,CP1-47,TE1-2,O1-5,V,AS1,AZ,KP1.