+ Issue Date : 17/04/1961
+ Classification : Postage Stamp
+ Emission : Commemorative
+ Printer : Joh. Enchedé en Zonen, Haarlem, Netherlands
+ Printing : Photogravure
+ Watermark : Unwatermarked
+ Perforations : 14 x 13
+ Separations : Normal Perforations
+ Gum Type : Gum
+ Shape : Rectangular
+ Orientation : Horizontal