CREATE TABLE table_name_43 (number_s_ VARCHAR2, quantity VARCHAR2, year_s__of_manufacture VARCHAR2)

What number was manufactured 1 in 1841?
SELECT number_s_ FROM table_name_43 WHERE quantity = "1" AND year_s__of_manufacture = "1841"
SELECT "number_s_" FROM "table_name_43" WHERE "1" = "quantity" AND "1841" = "year_s__of_manufacture"