Model of the Hamburg shipyard of J. and F. von Somm on the Großer Grasbrook, 1848 Model of the Hamburg shipyard of J. and F. von Somm on the Großer Grasbrook, 1848 Model of the Hamburg shipyard of J. and F. von Somm on the Großer Grasbrook, 1848 Model of the Hamburg shipyard of J. and F. von Somm on the Großer Grasbrook, 1848