The Nederlandse Spoorwegen (NS) Class 200 diesel locomotives were built for shunting duties. 169 of these small locomotives, numbered 201-369, were built by Werkspoor from 1934–1951. They were known as "Sikken" (Sik in singular, goats) by rail enthusiasts and "locomotor" by railway staff. Fifteen of these locomotives were rebuilt with a retractable crane. Many are preserved; regular service has stopped a few years ago.