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_73 ( points INTEGER, chassis VARCHAR, year VARCHAR )

### Question ###
What point is the lowest for listings of chassis labeled AGS JH23 before 1988?

### Accurate SQL ###

SELECT MIN(points) FROM table_name_73 WHERE chassis = "ags jh23" AND year < 1988