related tags: 292C1D 646A5F 868A6F A4A79E A5AC9A D9E7E8 DDE4E4 abstract abstractexpressionism artgalleryandmuseums arttate caloustegulbenkianfoundation caloustegulbenkianmuseum constructivism landscape lisbon moderncollection peterlanyon portugal 272921 646762 909762