EditorialBarks with sails and nets on the beach at Porto d'Anzio, pencil and watercolor on light green paper, sheet: 22.2 x 29.8 cm, U. l., Monogrammed with pen: T.P., Theophil Preiswerk, Basel 1846?1919 Basel.
EditorialScrubber by the sea near Cogoleto, 1887, pencil, watercolor, lacquer (?), Sheet: 26 x 38.5 cm, U. l., monogrammed with pen in brown, inscribed and dated: TP., [ligated] Cogoleto., 87th, Theophil Preiswerk, Basel 1846?1919 Basel.
EditorialWeidling on the bank of a calm water, the green pastures and umhagtes meadow long skirt, watercolor on pencil, sheet: 23.7 x 31.7 cm, U. r., monogrammed with a brush: TP [ligated], Theophil Preiswerk, Basel 1846?1919 Basel.
EditorialRocky top and slopes near Positano, watercolor over pencil, folia: 24.1 x 31.7 cm, U. r., monogrammed with a brush: TP [ligated], Theophil Preiswerk, Basel 1846?1919 Basel.
EditorialJurassic rock at Arlesheim, watercolor over pencil, sheet: 24.5 x 34.5 cm, U. l., monogrammed in gray with a brush: TP [ligated], Theophil Preiswerk, Basel 1846?1919 Basel.
EditorialBachufer bei Hangenbieten in Alsace, 1870-1871, oil on canvas, 31 x 38 cm, monogrammed lower left: TP [ligated], Theophil Preiswerk, Basel 1846?1919 Basel.