All about theatre calendars

1924
January

1931
January

1951
September

1954
November

1956
July
November
September

October

1957
February

1975
May

1976
October
November
December

1977
January
February
March
April
May
October
November
December

1978
January
February
March
April
October
November
December

1979
January
February
March
April
May
June
July
August
September
October
November
December

1980
January
February
March
April
May
June

July
August
September
October
November
December

1981
January
February
March

April
May
June
July
August