Genuine (Overprint type 3)
Type I: Upper inside curve of S is more rounded, upper opening of F is square-shaped, middle bar of Æ is too long,
G’s cross-bar longest on the left side and E’s middle bar is too long. All these characteristics have to be present for this type.
Type Ia: Same characteristics as on type I, but additionally: TF joined at the top.
Type II: Very different. Very characteristic P with a long loop.
Type III: “Cone P”. Poorly printed “muddy” copy. Foot of P cone-shaped. O and S cut off at the bottom, T serifs at an angle.
Type IV: “Jugend”. Slender letters. S very flat at top and bottom.
Type V: “Flat S”. Identified by the flat lower curve on S.
Type VI: “The Serif”. Long pointed serifs. So far only seen on Chr. X 50 Øre.
Type VII: “Drop G”. Bows in S are too wide and round. The downstroke on G extends down too far, and looks like a raindrop. Various cuts in the top of FÆR can occur.
Type VIII: “Bigfoot”. The letters are thin at the top, thick at the bottom. Most serifs are missing.