Type: ½ Franc 1978 Switzerland
Weight: 2,5 grams
Thickness: 1,3 mm
Diameter: 18,2 mm
Obverse: HELVETIA, the female personification of Switzerland, wearing a toga, is holding a spear and is leaning on a Swiss shield. She is encircled by the 22 stars representing the 22 cantons in which the Confederation then consisted.
Lettering: HELVETIA A BOVY INCT
Reverse: Value numeral within a wreath.
Lettering: ½ Fr. 1978 B
Engraver: A Bovy d´aprés A. Walch