CREATE TABLE table_name_84 (number_range VARCHAR, builder VARCHAR, introduced VARCHAR)

What is the number range for the Gloucester RCW builder introduced in 1937?
SELECT number_range FROM table_name_84 WHERE builder = "gloucester rcw" AND introduced = "1937"
SELECT "number_range" FROM "table_name_84" WHERE "1937" = "introduced" AND "builder" = "gloucester rcw"