Watermark: Dark intertwined lines (the watermark is very difficult to see because the document is folded, glued together and sealed in film)
Document number: Three letters in plain printing and 7 letters in letterpress printing
Reaction to UV light: The paper remains dark, yellow and blue grains become visible, yellow imprints, the entire text and the document number become fluorescent in a greeny-yellow colour – see images
Print quality: Neat anti-forgery pattern, the upper horizontal line on the facing and rear pages in micro lettering