Question: Which Year(s) of manufacture has a Type of 1B n2, and a Quantity of 10?
SQL: SELECT "Year(s) of manufacture" FROM "2-18934662-2" WHERE "Type" = '1B n2' AND "Quantity" = 10.0;

Question: Which Railway number(s) has a Year(s) of manufacture of 1899–1907?
SQL: SELECT "Railway number(s)" FROM "2-18934662-2" WHERE "Year(s) of manufacture" = '1899–1907';