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_3005450_1 (metlink_code VARCHAR, opened VARCHAR)

### Question ###
what is the metlink code that opened in 1908?

### Accurate SQL ###

SELECT metlink_code FROM table_3005450_1 WHERE opened = "1908"