1. Höhenschichten-Karte Ost- und Westpreussens : section Bromberg-Marienwerde Maps University Of Minnesota Public content 1881. Jentzsch, Alfred, 1850-1925. Relief shown by gradient tints, form lines, and spot heights. Depths shown by bathymetric soundings. 35 x 43 centimeters Scale 1:300,000 General Ma... Physikalisch-Oeconomischen Gesellschaft (Königsberg).