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_69 ( date_commissioned INTEGER, gross_tonnage VARCHAR, material VARCHAR, ship VARCHAR )

### Question ###
Tell me the lowest date commissioned for iron rmsrhone and gross tonnage less than 2,738

### Accurate SQL ###

SELECT MIN(date_commissioned) FROM table_name_69 WHERE material = "iron" AND ship = "rmsrhone" AND gross_tonnage < 2 OFFSET 738