Concert Room of Sanssouci Palace, Potsdam, Germany1852 · Brush and gouache, watercolor, graphite, gum arabic on white wove paperFrame H x W x D: 39.7 x 50.2 x 2.5 cm (15 5/8 x 19 3/4 x 1 in.)Cooper Hewitt, Smithsonian Design Museum
The Chinese Room in the Royal Palace, Berlin1850 · Brush and watercolor, gouache, graphite on white wove paperFrame H x W x D: 42.2 x 60.3 x 2.5 cm (17 5/8 x 23 3/4 x 1 in.)Cooper Hewitt, Smithsonian Design Museum
City Hall at Thorn1848 · oil paintoverall: 50.7 x 80 cm (19 15/16 x 31 1/2 in.) framed: 69.9 x 97.8 cm (27 1/2 x 38 1/2 in.)National Gallery of Art
The Study of Prince Karl of Prussia1848 · Brush and watercolor over graphite on paperFrame H x W x D: 39.7 x 50.2 x 2.5 cm (15 5/8 x 19 3/4 x 1 in.)Cooper Hewitt, Smithsonian Design Museum