Image Item No. Description By  51261  Duplo Wall 1 x 8 x 6 Hinge on Left with Door Opening Catalog: Parts: DUPLO, Building 1  53916  Duplo Wall 1 x 8 x 6 Hinge on Left with Window Opening Catalog: Parts: DUPLO, Building 1  51260  Duplo Wall 1 x 8 x 6 Hinge on Right with Window Opening Catalog: Parts: DUPLO, Building 2  52024  Duplo Wall 4 x 6 x 6 Curved Turret - Castle Catalog: Parts: DUPLO, Building 1