Charte vom Königlich Preussischen Regierungsbezirk Gumbinnen, August Kneisel, 1845
Kt. : borders color. (34 x 38 cm); coordinates e 19°58'00"-e 23°00'00"/n 55°27'00"-n 53°29'00"; from: atlas of the prussian state. - scale in graphic form (geographical miles). - title, explanation of symbols and scale bottom left. - with 1 geographical and statistical overview of the gumbinnen administrative district on the margins. - relief: hatching. Date: 1845.