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_43 ( class VARCHAR, quantity VARCHAR, date VARCHAR )

### Question ###
Which class has less in quantity than 174 between the years 1921 23?

### Accurate SQL ###

SELECT class FROM table_name_43 WHERE quantity < 174 AND date = "1921–23"