Obverse
HAAKON VII NORGES KONGE H7
At the centre, one sees the crowned monogram of King Haakon VII (a large 'H' and a large '7' intertwined). Around, the legend in Norwegian: HAAKON DEN SJUENDE NORGES KONGE (Haakon the Seventh King of Norway). Under the monogram, one notices the mint mark of the Kongsberg mint (a crossed hammer).
Reverse
NORGE 1957 50 ØRE
At the centre, the coat of arms of Norway: a lion standing holding an axe in a crowned shield. At the top, the inscription NORGE (Norway), the date, 1957, is divided on either side of the shield. At the bottom, the face value, 50 ØRE, that is half a crown.