Country: Czechoslovakia (Socialist Republic of Czechoslovakia)
Nominal: 50 hellers
Period of chasing: 1978 -1990
Years of chasing of these coins: 1978, 1979 (3 pcs.)
Fully identical, the difference is only in the year of chasing
Material: copper-nickel alloy
Diameter: 20.8 mm
Thickness: 1.4 mm
Weight: 3.2 g
Edge: ribbed