Topographical map 1: 25 000 — Issue of State (1981-1989) N-33-134-D-a Loyalty Brietzen

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.这批由AS国发行的地形图（topographical maps）最初主要用于军事用途，其保密等级为机密（Confidential）涉密信息。该类地形图比例尺为1:25000，共计25000种输出变体：其中TK指代地形图，TSP指代城市地形图。