CREATE TABLE table_name_19 (withdrawn VARCHAR(255), lswr_no VARCHAR(255), to_iow VARCHAR(255))
What is the number of the year withdrawn for a LSWR number greater than 210 and a To LoW year of 1923?
    
SQL: SELECT COUNT(withdrawn) FROM table_name_19 WHERE lswr_no > 210 AND to_iow = 1923