1948-1990, inventory in 3 gr. Thick stock books, as well a mint never hinged / used collection always from 1957 / 87 in the number of a major listing complete, further a mint never hinged block of four collection 1974 / 86 over gr. Distances complete as well an used inventory 1948 / 90, beginning with black- and red overprint values, bell stamps, amount of surtax, postal stamps, etc., high catalog value!