Theodor Bülau, Cathedral, Regensburg. Ground plan of the three west portals and project of the north tower, paper, pen, ink, pencil, pen and ink drawing, sheet size: height: 32.6 cm; width: 49 cm, unmarked, drawing, graphics, draft, plan of a building, portal (church construction), tower, castle, palace.
Theodor Bülau, Cathedral, Regensburg. Ground plan of the three west portals and project of the north tower, paper, pen, ink, pencil, pen and ink drawing, sheet size: height: 32.6 cm; width: 49 cm, unmarked, drawing, graphics, draft, plan of a building, portal (church construction), tower, castle, palace