Rarity depends on the mintage and the number of specimens still in circulation.
1955Mexico 10 pesos 1955 Mo
1957Mexico 1 peso 1957 Mo - Centenary of the Constitution of Mexico
1957Mexico 5 pesos 1957 Mo
195850 francs - King Baudouin - Expo 1958 in French
196050 francs - 1960 - wedding of King Baudouin and Queen Fabiola
1960Denmark 5 kroner Silver wedding - Frederick IX 1960
1964Denmark 5 kroner Wedding of Princess Anne Marie - Frederick IX 1964-♥ C
1966100 zlotys Poland 1966
1966Guernsey 10 shillings 1966 - 900 years of the Norman Conquest
1966Ireland 10 shillings - 1966
1967Denmark 10 kroner Wedding of Princess Margrethe - Frederick IX 1967 ♥ C
1968Denmark 10 kroner Wedding of Princess - Frederick IX 1968
1968Paraguay 300 guaranies - Alfredo Stroessner 1968
1969East Germany (GDR) 5 Mark 20th anniversary DDR 1969 - Rare version with 25% nickel
1972Denmark 10-kroner Death of Frederik IX and Accession of Margrethe II - Frederick IX 1972
1972Portugal 1 escudo 1972
1975Norway 5 kroner 1975 (100th anniversary of the Krone system) set
1975Norway 5 kroner 1975, 150th anniversary of emigration to America set
1977Portugal 2.5 escudos 1977 - Centenary of the death of Alexandre Herculano (Proof)
1977Portugal 25 escudos 1977 - Centenary of the death of Alexandre Herculano (Proof-Like)
1977Portugal 5 escudos 1977 - 100th anniversary of the death of Alexandre Herculano (Proof)
19781 fils FAO
1978Isle of Man ½ sovereign 1978 - Viking warrior
1979Canada 1 dollar - Elizabeth II 1979
Portugal 11
Germany 10
Denmark 10
Belgium 8
Ireland 8
France 8
Netherlands 7
Mexico 5
Italy 4
Canada 4
United Kingdom 3
Guernsey 2
Norway 2
Greece 1
Poland 1
Paraguay 1
Yemen 1
Isle of Man 1
Kuwait 1