What are the railway number(s) for year(s) of manufacture of 1905–1906?
CREATE TABLE "passenger_and_express_train_locomotives" (
  "class" text,
  "railway_number_s" text,
  "quantity" real,
  "year_s_of_manufacture" text,
  "axle_arrangement" text
);
SELECT "railway_number_s" FROM "passenger_and_express_train_locomotives" WHERE "year_s_of_manufacture"='1905–1906';