CREATE TABLE table_name_72 (serial_format VARCHAR(255), design VARCHAR(255), serials_issued VARCHAR(255))
What is the serial format for white on blue with a serial issued of ss-00-00 to zz-99-99?
    
SQL: SELECT serial_format FROM table_name_72 WHERE design = "white on blue" AND serials_issued = "ss-00-00 to zz-99-99"