Every year the supplement Netherlands Sheets (3) appears, which contains sheets of extra heavy paper (170 grs.) with plasticizer-free clamp strips.
Here you can store the sheets issued in the previous year.
On all sheets there are frames where you can put the sheets, usually with a picture of the sheet itself. On all these frames are transparent mounts to safely place your sheets in.
The Supplement Netherlands Sheets (3) contains the year 2021.
The content consists of 4 pages; V173,V174,V175,V176