Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_1217448_1 ( estimated_value VARCHAR, cover_date VARCHAR )

### Question ###
what's the estimated value where cover date is august 1962

### Accurate SQL ###

SELECT estimated_value FROM table_1217448_1 WHERE cover_date = "August 1962"