CREATE TABLE table_name_51 (works_number VARCHAR(255), date VARCHAR(255), type VARCHAR(255), name VARCHAR(255))
What is the total work number of Gowrie with a 0-6-4t type after 1908?
    
SQL: SELECT COUNT(works_number) FROM table_name_51 WHERE type = "0-6-4t" AND name = "gowrie" AND date > 1908