The Nave, Apse, and Crossing of a Cathedral for Berlin. Dated: 1827. Dimensions: sheet: 26.9 x 17.1 cm (10 9/16 x 6 3/4 in.) image: 25.6 x 15.8 cm (10 1/16 x 6 1/4 in.). Medium: watercolor over graphite on wove paper, laid down on presentation mount.