Image Item No. Description  x978  Duplo Door / Window Frame 2 x 4 x 3 Half Door Catalog: Parts: DUPLO, Building  x978c01 (Inv)  Duplo Door / Window Frame 2 x 4 x 3 Half Door with (Same Color) Duplo Door 1 x 4 x 1 (x978 / x979) Catalog: Parts: DUPLO, Building  x979  Duplo Door 1 x 4 x 1 Catalog: Parts: DUPLO, Building  x979pb02  Duplo Door 1 x 4 x 1 with Red POST-MAIL Pattern Catalog: Parts: DUPLO, Building