1957/02-1960

https://w3id.org/zericatalog/date/1957-02post-1960ca an entity of type: E52_Time-Span

post 
ca. 
1960-01-01T00:00:00Z 
1957-02-01-01T00:00:00Z 
1957/02-1960 

data from the linked data cloud