Topographical map 1: 25 000 — Edition State (1981-1989) N-33-111-C-d Velten

The topographical maps, referred to as the issuing State (AS), were primarily for military purposes and carried the classification level of Confidential classified information. In scale 1: There were 25,000 output variants: TK=topographic maps and TSP=topographic city maps.该类地形图由AS（发行国）发行，主要用于军事用途，密级为机密级。在1:比例尺规格下，共产出25000种输出变体：其中TK代表地形图（topographic maps），TSP代表城市地形图（topographic city maps）。