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 (period VARCHAR, built VARCHAR, model VARCHAR)

### Question ###
Between which years were there 241 fokker 70 model cabins built?

### Accurate SQL ###

SELECT period FROM table_name_43 WHERE built < 241 AND model = "fokker 70"