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_name_7 (points INTEGER, chassis VARCHAR, year VARCHAR)

### Question ###
For a year earlier than 1991 and a reynard 91d chassis, what's the highest points?

### Accurate SQL ###

SELECT MAX(points) FROM table_name_7 WHERE chassis = "reynard 91d" AND year < 1991