Width just over 21 mm at the widest point of the cross.
Prior to 1977:
1977 to date.
For 1977 onward, the firm of Veluw of Zeist began to produce both the full size and the 21mm wide miniature versions of the medal. The design changes made to the full size medals were reflected in the miniatures, including being made of base metal (e.g. not silver) . All have “W.v.Veluw B.V. Zeist” at the centre of the reverse.
Ribbon numbers for further marches are similar to those worn on the full size crosses, although in plain yellow or white metal, without enamel.