The Werkgroep 1501 was established in 1986 with the aim of preserving electric railway locomotive 1501. In the years after, the rolling stock collection was expanded with other characteristic electric locomotives ofDutch Railways: 1122, 1304 and 1315. The Werkgroep 1501 also owns two locomotives of the NS 1200 series: the turquoise 1201 which is now in Het Spoorwegmuseum (Dutch Railwaymuseum) at Utrecht and the brown 1218.
