I: Normal date. Img! (Holmasto 182, SNY 145.1, E. Borg 1866 a/-)
II: 6 engraved on 5! Img! (Holmasto -, SNY 145.2, E. Borg 1866 b/-)
III: "66" not straight (Holmasto -, SNY -, E. Borg 1866 c/-)
IV: Last 6 higher up.. Img! (Holmasto -, SNY -, E. Borg 1866 d/-)
V: Last 6 re-engraved Img! (Holmasto -, SNY -, E. Borg -)